{"title":"OBS LT Swap Wiring","description":"\u003cp\u003eWiring harnesses and electrical components for LT engine swaps into 1988-1999 Chevy\/GMC OBS trucks. Shop the full \u003ca href=\"\/collections\/engine-performance-and-maintenance\"\u003eOBS Engine Swap Parts\u003c\/a\u003e collection.\u003c\/p\u003e","products":[{"product_id":"1973-1998-chevy-truck-drive-by-wire-throttle-pedal-bracket","title":"1973-1998 Chevy Truck Drive By Wire Throttle Pedal Bracket","description":"\u003cp\u003eIf you're putting an LS or LT swap into your Chevy\/GMC truck and need a way to mount a drive-by-wire throttle pedal, PSI has made it simple with this bracket kit. The mounting bracket and included hardware provide a clean, bolt-in, trouble-free installation using your truck's factory pedal mounting holes.\u003c\/p\u003e\u003ch3\u003eWhy You Need It\u003c\/h3\u003e\u003cp\u003eLate-model LS and Vortec engines (2007-up, Gen IV\/58x) as well as Gen V LT engines use an electronically actuated throttle body (drive-by-wire) versus the older traditional cable-actuated throttle assemblies. This conversion bracket is year and model specific, giving you a factory-look platform to neatly mount a GM Corvette-style DBW pedal in place of your old cable pedal.\u003c\/p\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cul\u003e\u003cli\u003e1973-1998 Chevy\/GMC C10, Silverado, Blazer, Suburban (Squarebody \u0026amp; OBS\/GMT400 trucks)\u003c\/li\u003e\u003c\/ul\u003e\u003ch3\u003eWhat's Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePedal mounting bracket\u003c\/li\u003e\n\u003cli\u003eMounting hardware\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Pedal is sold separately — pair this bracket with our \u003cstrong\u003eACC-1007 Gen 4 \u0026amp; 5 \u0026amp; Holley LS2\/LS3 Accelerator Pedal\u003c\/strong\u003e to bolt a Corvette-style DBW pedal directly into your factory pedal location.\u003c\/p\u003e\u003cp\u003eSourced through PSI Conversion.\u003c\/p\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568652357792,"sku":"BRK-7398","price":65.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/b878f7db733c02f274e3ff7741f92837.jpg?v=1785639316"},{"product_id":"gen-4-5-holley-ls2-ls3-accelerator-pedal-2007-current","title":"Gen 4 \u0026 5 \u0026 Holley LS2\/LS3 Accelerator Pedal (2007-Current)","description":"\u003cp\u003e\u003cstrong\u003eAPPLICATION:\u003c\/strong\u003e 2007-Current LS and Vortec engine conversions with 58x (Gen IV) engines, and Gen V LT\/Holley conversions.\u003c\/p\u003e\u003cp\u003eThis pedal is for use with all PSI engine harnesses designed for 58x engine applications and is the most popular option for Gen IV LS, Gen V LT, and Holley EFI system swaps.\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eThe CTS-V, Corvette, and Camaro accelerator pedals are all interchangeable with each other\u003c\/li\u003e\n\u003cli\u003eCompatible with PSI E40 harnesses as well as Holley EFI systems\u003c\/li\u003e\n\u003cli\u003eWorks with all PSI 58x-application harnesses\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompanion Product\u003c\/h3\u003e\u003cp\u003eSwapping into an older 1973-1998 Squarebody or OBS truck? Pair this pedal with our \u003cstrong\u003eBRK-7398 Drive By Wire Throttle Pedal Bracket\u003c\/strong\u003e to bolt this Corvette-style pedal directly into your factory pedal location.\u003c\/p\u003e\u003cp\u003eThis pedal supports both LS (Gen IV) and LT (Gen V) swaps.\u003c\/p\u003e\u003cp\u003eSourced through PSI Conversion.\u003c\/p\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568652521632,"sku":"ACC-1007","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/b878f7db733c02f274e3ff7741f92837_65b4b50e-b943-41c9-beda-e6934f13f152.jpg?v=1785639370"},{"product_id":"gen-2-lt-optispark-extension-harness-long","title":"Gen 2 LT Optispark Extension Harness - Long","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThe PSI Gen 2 LT Optispark Extension Harness (Long) extends the factory Optispark distributor connector on 1992-1997 LT1\/LT4 Gen II engines, giving you extra reach when the distributor needs to sit farther from the factory harness routing point — common in OBS truck and street rod LT swaps where the engine is set back or the harness is routed differently than in the donor vehicle.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePlug-and-play factory-style Optispark connector on both ends\u003c\/li\u003e\n\u003cli\u003eLong length version for extended routing situations\u003c\/li\u003e\n\u003cli\u003eGM Delphi-style connectors and TXL high-temperature wire to GM spec\u003c\/li\u003e\n\u003cli\u003ePairs with our HAR-G2 Gen II LT1\/LT4 standalone harness\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e 1992-1997 LT1\/LT4 Gen II Optispark distributor applications.\u003c\/p\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568723300512,"sku":"HAR-1002","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/c_030820101543301.jpg?v=1785649580"},{"product_id":"gen-2-lt-optispark-extension-harness-short","title":"Gen 2 LT Optispark Extension Harness - Short","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThe PSI Gen 2 LT Optispark Extension Harness (Short) extends the factory Optispark distributor connector on 1992-1997 LT1\/LT4 Gen II engines. This short-length version is for applications needing only minor additional reach between the factory harness and the distributor.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003ePlug-and-play factory-style Optispark connector on both ends\u003c\/li\u003e\n\u003cli\u003eShort length version for minor routing adjustments\u003c\/li\u003e\n\u003cli\u003eGM Delphi-style connectors and TXL high-temperature wire to GM spec\u003c\/li\u003e\n\u003cli\u003ePairs with our HAR-G2 Gen II LT1\/LT4 standalone harness\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e 1992-1997 LT1\/LT4 Gen II Optispark distributor applications.\u003c\/p\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568723562656,"sku":"HAR-1011","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/IMG_0859MODThumb.png?v=1785649580"},{"product_id":"gen-2-3-lt-ls-o2-sensor-extension-harness-4-flat","title":"Gen 2\/3 LT\/LS O2 Sensor Extension Harness (4-Flat)","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eExtends the factory 4-wire flat oxygen sensor connector used on GM Gen II LT (1992-1997) and Gen III\/IV LS\/Vortec (1997-2014+) oxygen sensor circuits. Useful any time the O2 sensor bung location on your swap headers or exhaust doesn't line up with the factory harness length, giving clean, factory-style reach without splicing into the sensor wiring itself.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFactory-style 4-wire flat O2 sensor connector on both ends\u003c\/li\u003e\n\u003cli\u003eCompatible with Gen II LT1\/LT4 and Gen III\/IV LS\/Vortec upstream \u0026amp; downstream O2 sensors\u003c\/li\u003e\n\u003cli\u003eGM Delphi-style connectors and TXL high-temperature wire to GM spec\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568723759264,"sku":"HAR-1001","price":24.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/HAR-100112024Final.jpg?v=1785649580"},{"product_id":"gen-2-lt-o2-sensor-4-wire-flat","title":"Gen 2 LT O2 Sensor, 4-Wire Flat","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eFactory-style 4-wire flat oxygen sensor for 1992-1997 Gen II LT1\/LT4 applications. Direct-fit replacement\/upgrade sensor for use with PSI's HAR-G2 standalone harness or any factory-style Gen II LT wiring.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e4-wire flat connector, matches factory Gen II LT1\/LT4 O2 sensor wiring\u003c\/li\u003e\n\u003cli\u003eHeated sensor for fast closed-loop operation\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e 1992-1997 LT1\/LT4 Gen II applications using the factory 4-wire flat O2 connector.\u003c\/p\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568723923104,"sku":"ACC-1001","price":80.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/ACC-1001-1.jpg?v=1785649579"},{"product_id":"diy-braided-wire-loom-kit","title":"DIY Braided Wire Loom Kit","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003ePSI's self-install braided wire loom kit — the same braided sleeving material used when you select a \"Braided Loom Installed\" option on a PSI standalone harness, sold separately so you can braid a harness yourself.\u003c\/p\u003e\u003cp\u003eThis is the standalone loom listing for customers who want to buy the braid kit separately: for example, to re-loom a harness later after modifications, to braid a second harness, or to braid a harness that was purchased bare. If you're ordering a new harness (such as our \u003ca href=\"\/products\/92-96-gen-2-lt1-lt4-drive-by-cable-4l60e-t56-transmission-standalone-harness\"\u003eHAR-G2 Gen II standalone harness\u003c\/a\u003e, our Gen V LT1\/LT4 engine controller kit, or our Gen V LT1 standalone harness), you can select the \"Bare Harness \u0026amp; DIY Braid Kit\" option directly on that listing instead — the option price already includes this kit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSelf-adhesive\/expandable braided sleeving and wire loom components\u003c\/li\u003e\n\u003cli\u003eProfessional-looking, heat- and abrasion-resistant finish\u003c\/li\u003e\n\u003cli\u003eEnough material to loom a typical engine\/transmission standalone harness\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568723988640,"sku":"BRD-1001","price":79.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/Brd-1001ColorWatermark.jpg?v=1785649579"},{"product_id":"tcc-brake-switch-kit","title":"TCC \/ Brake Switch Kit","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eCompanion kit that provides the torque converter clutch (TCC) and brake switch wiring components needed to complete the automatic transmission control connections on a PSI standalone harness or engine controller kit install.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eProvides TCC and brake switch circuit hookup components\u003c\/li\u003e\n\u003cli\u003eCompanion part for automatic-transmission LS and LT swap harness installs\u003c\/li\u003e\n\u003cli\u003eRecommended add-on for our LS and LT standalone harnesses and engine controller kits when running an automatic transmission\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568724021408,"sku":"KIT-1002","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/KIT-10022024.png?v=1785649579"},{"product_id":"lt1-lt4-pcm-with-programming-1994-1995","title":"LT1\/LT4 PCM with Programming (1994-1995)","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eA complete, PSI-programmed factory computer for 1994-1995 LT1\/LT4 applications. Pairs directly with our \u003ca href=\"\/products\/92-96-gen-2-lt1-lt4-drive-by-cable-4l60e-t56-transmission-standalone-harness\"\u003eHAR-G2 Gen II LT1\/LT4 standalone harness\u003c\/a\u003e for a complete, plug-and-play engine control setup on your OBS LT swap.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFactory GM PCM, fully programmed and ready to install\u003c\/li\u003e\n\u003cli\u003eMatched for use with 1994-1995 model year LT1\/LT4 engines and PSI's HAR-G2 harness\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e PSI only stocks and programs the 1994-1995 model year PCM as a standard, ready-to-ship SKU. 1992-1993 and 1996-1997 model year LT1\/LT4 PCMs are not stocked as a standard listing — contact us or PSI directly if your engine falls outside the 1994-1995 range.\u003c\/p\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568724218016,"sku":"PCM-1001","price":489.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/PCM-1001glam_2.jpg?v=1785649579"},{"product_id":"lt1-lt4-pcm-programming-service-customer-supplied-pcm-1994-1995","title":"LT1\/LT4 PCM Programming Service (Customer-Supplied PCM, 1994-1995)","description":"\u003ch3\u003eProgramming Service — Not a Physical Part\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eThis is a mail-in programming service, not a stocked, ready-to-install PCM.\u003c\/strong\u003e The PCM itself is NOT included. You send in your own 1994-1995 LT1\/LT4 PCM core, PSI programs it for standalone use with your HAR-G2 harness setup, and ships it back to you.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCustomer supplies their own 1994-1995 LT1\/LT4 PCM core\u003c\/li\u003e\n\u003cli\u003ePSI programs the core for standalone operation\u003c\/li\u003e\n\u003cli\u003eReturn shipping included in service\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eLooking for a ready-to-install unit instead? See our \u003ca href=\"\/products\/lt1-lt4-pcm-with-programming-1994-1995\"\u003eLT1\/LT4 PCM with Programming (1994-1995)\u003c\/a\u003e listing, which includes a fully programmed PCM ready to ship.\u003c\/p\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568724250784,"sku":"PCM-1002","price":160.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/PCM-1002glamstamp.jpg?v=1785649579"},{"product_id":"gen-v-lt-swap-fan-relay-kit","title":"Gen V LT Swap Fan Relay Kit","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eCompanion fan relay kit for Gen V LT swap engine controller kits and standalone harnesses (our \u003ca href=\"\/products\/gen-5-direct-injection-2014-lt1-lt4-engine-controller-kit\"\u003eKIT-LT1\u003c\/a\u003e and \u003ca href=\"\/products\/2014-gen-v-lt1-direct-injection-automatic-manual-transmission-standalone-harness\"\u003eHAR-LT1\u003c\/a\u003e). Provides basic 12V ground-trigger relay wiring for standard electric cooling fans.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBasic 12V ground-trigger fan relay wiring\u003c\/li\u003e\n\u003cli\u003eCompanion part for KIT-LT1 \/ HAR-LT1 fan control outputs\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Standard 12V ground-trigger fan outputs are NOT guaranteed to reliably trigger every fan setup, especially on manual-transmission builds where the ECM cannot guarantee a ground signal. For a more robust setup, consider our \u003ca href=\"\/products\/pac-2800bt-pwm-fan-controller-gen-v-lt-swap\"\u003ePAC-2800BT PWM Fan Controller\u003c\/a\u003e instead.\u003c\/p\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568724283552,"sku":"KIT-1011","price":95.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/cc25ca60-a28a-4e90-9dfc-2287a9dea11b.jpg?v=1785640981"},{"product_id":"pac-2800bt-pwm-fan-controller-gen-v-lt-swap","title":"PAC-2800BT PWM Fan Controller - Gen V LT Swap","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eBluetooth-programmable PWM fan controller, rated 70 amp, for use with GM single-fan (C7 Corvette-style) or dual-fan (Vortec truck-style) PWM cooling fan setups. Pairs with our \u003ca href=\"\/products\/gen-5-direct-injection-2014-lt1-lt4-engine-controller-kit\"\u003eKIT-LT1\u003c\/a\u003e and \u003ca href=\"\/products\/2014-gen-v-lt1-direct-injection-automatic-manual-transmission-standalone-harness\"\u003eHAR-LT1\u003c\/a\u003e Gen V LT swap products, and works equally well on Gen III\/IV LS swap PWM fan setups.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBluetooth app programmable fan curves\u003c\/li\u003e\n\u003cli\u003e70 amp rated output\u003c\/li\u003e\n\u003cli\u003eSupports GM single-fan (C7) or dual-fan (Vortec) PWM configurations\u003c\/li\u003e\n\u003cli\u003eMore robust and reliable than standard 12V ground-trigger relay outputs, especially on manual-transmission builds\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568724316320,"sku":"PAC-2800BT","price":185.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/3c8f53a1-4dbd-43bb-9aa2-bc2832e38b96.jpg?v=1785640995"},{"product_id":"engine-to-chassis-ground-strap-kit-gen-v-lt-swap-add-on","title":"Engine-to-Chassis Ground Strap Kit - Gen V LT Swap Add-On","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eRecommended engine-to-chassis ground strap kit for Gen V LT swap installs. A solid, low-resistance engine-to-chassis ground is critical for reliable ECM\/sensor operation, clean ignition, and accurate gauge readings on any standalone-harness swap.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRecommended add-on for our \u003ca href=\"\/products\/gen-5-direct-injection-2014-lt1-lt4-engine-controller-kit\"\u003eKIT-LT1\u003c\/a\u003e and \u003ca href=\"\/products\/2014-gen-v-lt1-direct-injection-automatic-manual-transmission-standalone-harness\"\u003eHAR-LT1\u003c\/a\u003e Gen V LT swap products\u003c\/li\u003e\n\u003cli\u003eHeavy-gauge braided ground strap and hardware\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568724349088,"sku":"GND-LT-1001","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/2464c5d1-f089-48f9-8dc0-fb360827dccd.jpg?v=1785641006"},{"product_id":"e85-flex-fuel-signal-wire-gen-v-lt-swap-add-on","title":"E85 Flex Fuel Signal Wire - Gen V LT Swap Add-On","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eAdds the flex-fuel signal wire circuit to your Gen V LT swap harness for use with an E85\/flex-fuel sensor, allowing the ECM to adjust fueling and timing for varying ethanol content.\u003c\/p\u003e\u003cul\u003e\u003cli\u003eAdd-on circuit for our \u003ca href=\"\/products\/gen-5-direct-injection-2014-lt1-lt4-engine-controller-kit\"\u003eKIT-LT1\u003c\/a\u003e and \u003ca href=\"\/products\/2014-gen-v-lt1-direct-injection-automatic-manual-transmission-standalone-harness\"\u003eHAR-LT1\u003c\/a\u003e Gen V LT swap products\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Running E85\/flex-fuel requires a custom tune to properly compensate fueling and timing for ethanol content — the base startup tune included with our controller kits does not include flex-fuel calibration.\u003c\/p\u003e","brand":"PSI Conversion","offers":[{"title":"Default Title","offer_id":58568724414624,"sku":"E85-LT-1001","price":15.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/4937be2c-3db5-438c-a1c6-7062d4007d0f.jpg?v=1785641020"},{"product_id":"vcm-100-cruise-control-kit-gen-v-lt-swap-add-on","title":"VCM-100 Cruise Control Kit - Gen V LT Swap Add-On","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eElectronic cruise control kit companion for our \u003ca href=\"\/products\/gen-5-direct-injection-2014-lt1-lt4-engine-controller-kit\"\u003eKIT-LT1\u003c\/a\u003e and \u003ca href=\"\/products\/2014-gen-v-lt1-direct-injection-automatic-manual-transmission-standalone-harness\"\u003eHAR-LT1\u003c\/a\u003e Gen V LT swap products. Choose the handle configuration that matches how you want to operate cruise control in your vehicle.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Handle:\u003c\/strong\u003e uses your factory steering column stalk\/handle if compatible\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColumn Handle:\u003c\/strong\u003e includes a steering column-mount cruise control handle\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Mount:\u003c\/strong\u003e includes a dash-mount cruise control switch\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"PSI Conversion","offers":[{"title":"No Handle (Use Factory Handle)","offer_id":58568724447392,"sku":"VCM-100-NOHANDLE","price":465.0,"currency_code":"USD","in_stock":true},{"title":"Column Handle","offer_id":58568724480160,"sku":"VCM-100-COLUMN","price":565.0,"currency_code":"USD","in_stock":true},{"title":"Dash Mount","offer_id":58568724512928,"sku":"VCM-100-DASH","price":565.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/49214431-b0c1-4869-8988-183c3dbbaf13.jpg?v=1785641034"},{"product_id":"92-96-gen-2-lt1-lt4-drive-by-cable-4l60e-t56-transmission-standalone-harness","title":"92-96 Gen 2 LT1\/LT4 Drive by Cable 4L60E\/T56 Transmission Standalone Harness","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eAPPLICATION:\u003c\/strong\u003e 1992-1996 Gen II LT1\/LT4 5.7L engines with drive-by-cable throttle.\u003c\/p\u003e\u003cp\u003eThis is the \u003cstrong\u003eonly LT standalone harness on our site that works with an OBS truck's factory cable-throttle setup\u003c\/strong\u003e — no pedal swap, no throttle-body conversion, and no drive-by-wire pedal bracket needed. If you're dropping a Gen II LT1\/LT4 into an OBS Chevy\/GMC truck and want to keep your factory cable throttle linkage, this is the harness for your build. PSI's own vehicle application selector lists this harness as compatible with the \u003cstrong\u003eOBS Chevy 88-98\u003c\/strong\u003e platform.\u003c\/p\u003e\u003cp\u003eThese Gen II LT1\/LT4 engines originally came in the C4 Corvette, Camaro, Firebird, Caprice, Impala SS, Roadmaster, and Fleetwood.\u003c\/p\u003e\u003ch3\u003eParts Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eComplete braided engine and transmission wiring harness\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAdditional Items Required (Sold Separately)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLT1\/LT4 PCM — see our \u003ca href=\"\/products\/lt1-lt4-pcm-with-programming-1994-1995\"\u003ePCM-1001 (PCM with Programming)\u003c\/a\u003e or \u003ca href=\"\/products\/lt1-lt4-pcm-programming-service-customer-supplied-pcm-1994-1995\"\u003ePCM-1002 (Programming Service, Customer-Supplied PCM)\u003c\/a\u003e listings\u003c\/li\u003e\n\u003cli\u003eFan relays — see our \u003ca href=\"\/products\/single-fan-relay-kit\"\u003eSingle Fan Relay Kit (KIT-1010)\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTransmission Note\u003c\/h3\u003e\u003cp\u003eIf selecting the 4L60E option, the transmission must be a \u003cstrong\u003e1994 or 1995\u003c\/strong\u003e unit to be compatible with this harness.\u003c\/p\u003e\u003ch3\u003eConnections For\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFuse\/Relay Box\u003c\/li\u003e\n\u003cli\u003eFuel Pump Control (relay included)\u003c\/li\u003e\n\u003cli\u003eFan Controls\u003c\/li\u003e\n\u003cli\u003eCheck Engine Light \/ Speedometer \/ Tachometer \/ OBD2\u003c\/li\u003e\n\u003cli\u003eIAC \/ TPS\u003c\/li\u003e\n\u003cli\u003eMAP Sensor\u003c\/li\u003e\n\u003cli\u003eEngine Coolant Temp (ECT) Sensor\u003c\/li\u003e\n\u003cli\u003eAlternator Control\u003c\/li\u003e\n\u003cli\u003e(2) Upstream Oxygen Sensors\u003c\/li\u003e\n\u003cli\u003eCrankshaft Position\u003c\/li\u003e\n\u003cli\u003eCamshaft Position\u003c\/li\u003e\n\u003cli\u003eFuel Injectors\u003c\/li\u003e\n\u003cli\u003eCoil Packs\u003c\/li\u003e\n\u003cli\u003eAutomatic or Manual Transmission Control\u003c\/li\u003e\n\u003cli\u003eKnock Sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCustomer Must Hook Up\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFuel pump\u003c\/li\u003e\n\u003cli\u003eSwitched ignition power\u003c\/li\u003e\n\u003cli\u003eMIL \/ Check Engine Light\u003c\/li\u003e\n\u003cli\u003eSpeedometer\u003c\/li\u003e\n\u003cli\u003eTachometer\u003c\/li\u003e\n\u003cli\u003eFan relay controls\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eDesigned for retrofitting a 1992-1997 5.7L LT1\/LT4 into older vehicles. Harnesses are professionally constructed from Brand New GM Delphi Connectors and TXL (Polyethylene Cross Linked) High Temperature Wire to GM Specifications. 100% Quality Control tested. Harness length is 4-5 feet from the rear of the cylinder head to the PCM mounting position.\u003c\/p\u003e","brand":"PSI Conversion","offers":[{"title":"4L60E \/ '94-'96 Throttle Body (4 Wire Inline IAC) \/ Camaro\/Firebird\/Caprice","offer_id":58568724578464,"sku":"HAR-G2-4L60E-9496-CFC","price":769.0,"currency_code":"USD","in_stock":true},{"title":"4L60E \/ '94-'96 Throttle Body (4 Wire Inline IAC) \/ Corvette","offer_id":58568724611232,"sku":"HAR-G2-4L60E-9496-CORV","price":804.0,"currency_code":"USD","in_stock":true},{"title":"4L60E \/ '92-'93 Throttle Body (4 Wire Square IAC) \/ Camaro\/Firebird\/Caprice","offer_id":58568724644000,"sku":"HAR-G2-4L60E-9293-CFC","price":849.0,"currency_code":"USD","in_stock":true},{"title":"4L60E \/ '92-'93 Throttle Body (4 Wire Square IAC) \/ Corvette","offer_id":58568724676768,"sku":"HAR-G2-4L60E-9293-CORV","price":884.0,"currency_code":"USD","in_stock":true},{"title":"T56 \/ '94-'96 Throttle Body (4 Wire Inline IAC) \/ Camaro\/Firebird\/Caprice","offer_id":58568724709536,"sku":"HAR-G2-T56-9496-CFC","price":769.0,"currency_code":"USD","in_stock":true},{"title":"T56 \/ '94-'96 Throttle Body (4 Wire Inline IAC) \/ Corvette","offer_id":58568724742304,"sku":"HAR-G2-T56-9496-CORV","price":804.0,"currency_code":"USD","in_stock":true},{"title":"T56 \/ '92-'93 Throttle Body (4 Wire Square IAC) \/ Camaro\/Firebird\/Caprice","offer_id":58568724775072,"sku":"HAR-G2-T56-9293-CFC","price":849.0,"currency_code":"USD","in_stock":true},{"title":"T56 \/ '92-'93 Throttle Body (4 Wire Square IAC) \/ Corvette","offer_id":58568724807840,"sku":"HAR-G2-T56-9293-CORV","price":884.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/PSI-2382_Large_watermarked.jpg?v=1785649255"},{"product_id":"gen-5-direct-injection-2014-lt1-lt4-engine-controller-kit","title":"Gen 5 (Direct Injection) 2014+ LT1 LT4 Engine Controller Kit","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eAPPLICATION:\u003c\/strong\u003e Gen 5 (Direct Injection) 2014+ LT1, LT4, L83, L84, L86, L87 \u0026amp; L8T 5.3L \/ 6.2L \/ 6.6L engines.\u003c\/p\u003e\u003cp\u003eThis is PSI's complete, true stand-alone controller kit for a Gen V LT swap — engine and transmission harness, programmed ECM (and TCM for 8\/10-speed), pedal, sensors, and MAF tube all in one kit, so you're not hunting down individual parts.\u003c\/p\u003e\u003ch3\u003eDBW Only — Important for OBS Installs\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eThis kit has no cable-throttle option.\u003c\/strong\u003e Gen V direct-injection LT engines only ever came with electronic (drive-by-wire) throttle from the factory — there is no cable-throttle variant. For an OBS truck install, you'll use the included Corvette-style \u003ca href=\"\/products\/gen-4-5-holley-ls2-ls3-accelerator-pedal\"\u003eaccelerator pedal (ACC-1007, already in the box)\u003c\/a\u003e along with our separate \u003ca href=\"\/products\/1973-1998-chevy-truck-drive-by-wire-throttle-pedal-bracket\"\u003e1973-1998 Chevy Truck Drive By Wire Throttle Pedal Bracket (BRK-7398, $65)\u003c\/a\u003e to mount that pedal correctly in an OBS cab. The bracket is sold separately and is not a variant of this kit.\u003c\/p\u003e\u003ch3\u003eParts Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eComplete engine and transmission wiring harness\u003c\/li\u003e\n\u003cli\u003eEngine ECM (model varies by transmission choice — PSI's PCM-2001 \/ PCM-2003 \/ PCM-2004 \/ PCM-2006 line)\u003c\/li\u003e\n\u003cli\u003eTCM (8 and 10-speed only)\u003c\/li\u003e\n\u003cli\u003eAccelerator pedal (ACC-1007)\u003c\/li\u003e\n\u003cli\u003e(2) Oxygen sensors\u003c\/li\u003e\n\u003cli\u003eMAF sensor\u003c\/li\u003e\n\u003cli\u003eECM mounting bracket\u003c\/li\u003e\n\u003cli\u003e4\" LS3\/LT1 MAF tube\/holder\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e On 6-speed builds, don't forget to mail in your customer-supplied T43 TCM (located inside your 6L80E transmission) for programming.\u003c\/p\u003e\u003ch3\u003eTransmission Compatibility\u003c\/h3\u003e\u003cp\u003eAll 8 + 10 speed TCM tuning REQUIRES your TUN (Transmission Unique Number). Without the TUN#, we cannot guarantee a compatible transmission, and warranties cannot be honored without this information.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6L80\/90E:\u003c\/strong\u003e Must be 2013+ model year transmissions to work with a Gen 5 LT system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8L80\/90E:\u003c\/strong\u003e 2014-2018 Gen 1 model years currently compatible. Gen 2 8-speeds (2019+) are NOT compatible.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10L80\/90E:\u003c\/strong\u003e All 2017-2018 Gen 1 10-speed transmissions are compatible. 2019-21 2WD Truck\/SUV and all 2019+ GM Performance and Camaro are compatible. 2022+ Gen 2 10-speed transmissions with electronic transmission range select (ETRS) are NOT compatible — these ETRS transmissions will only have a \"park\" and \"out of park\" position on the external shift lever on the driver side of the transmission.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFuel System\u003c\/h3\u003e\u003cp\u003eThis setup uses a fuel pump relay to send 12V power directly to a standard constant-supply fuel pump, paired with a return-style regulator (regulated to 78 psi) rather than the factory PWM fuel pump control module (FPCM). See our \u003ca href=\"\/collections\/obs-fuel-system-swap\"\u003eOBS Fuel System Swap collection\u003c\/a\u003e (KIT-1020 \/ KIT-1021) for compatible return-style fuel system pairings. If a PWM fuel pump \/ factory FPCM setup is required for your fuel tank, PSI also offers an add-on kit (KIT-1006) to accomplish this — contact us for details.\u003c\/p\u003e\u003ch3\u003eConnections For\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFuse\/Relay Box\u003c\/li\u003e\n\u003cli\u003eFuel Pump Control\u003c\/li\u003e\n\u003cli\u003eFan Controls\u003c\/li\u003e\n\u003cli\u003eCheck Engine Light, OBD2\u003c\/li\u003e\n\u003cli\u003eAccelerator Pedal\u003c\/li\u003e\n\u003cli\u003eThrottle Body\u003c\/li\u003e\n\u003cli\u003eMAF Sensor\u003c\/li\u003e\n\u003cli\u003eMAP Sensor\u003c\/li\u003e\n\u003cli\u003eEngine Coolant Temp Sensor\u003c\/li\u003e\n\u003cli\u003eAlternator Control\u003c\/li\u003e\n\u003cli\u003e(2) Upstream Oxygen Sensors\u003c\/li\u003e\n\u003cli\u003eCrankshaft Position\u003c\/li\u003e\n\u003cli\u003eCamshaft Position\u003c\/li\u003e\n\u003cli\u003eFuel Injectors\u003c\/li\u003e\n\u003cli\u003eCoil Packs\u003c\/li\u003e\n\u003cli\u003eAutomatic or Manual Transmission Control\u003c\/li\u003e\n\u003cli\u003eKnock Sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTuning Disclaimer\u003c\/h3\u003e\u003cp\u003eThe installed tune is a base\/startup tune, mirroring a factory OEM tune based on the options selected in your order. The tune will remove VATS (Vehicle Anti-Theft System), bypass VVT (if applicable), disable DOD (if applicable), and remove restrictions preventing operation of the engine when installed in a different vehicle.\u003c\/p\u003e\u003cp\u003eAny engine or transmission modifications will REQUIRE a custom tune to ensure proper operation and prevent serious damage. PSI Conversion cannot be held responsible for issues related to operation or performance when the engine\/transmission has been modified, or varies from the options selected when the tune was installed.\u003c\/p\u003e","brand":"PSI Conversion","offers":[{"title":"6L80\/6L90E (2013+) \/ Bare Harness, No Loom","offer_id":58568725102752,"sku":"KIT-LT1-6L80-BARE","price":1729.99,"currency_code":"USD","in_stock":true},{"title":"6L80\/6L90E (2013+) \/ Bare Harness \u0026 DIY Braid Kit","offer_id":58568725135520,"sku":"KIT-LT1-6L80-DIY","price":1804.99,"currency_code":"USD","in_stock":true},{"title":"6L80\/6L90E (2013+) \/ Braided Loom Installed","offer_id":58568725168288,"sku":"KIT-LT1-6L80-BRAID","price":1854.99,"currency_code":"USD","in_stock":true},{"title":"8L90E ('14-'18 Gen I only) \/ Bare Harness, No Loom","offer_id":58568725201056,"sku":"KIT-LT1-8L90-BARE","price":1929.99,"currency_code":"USD","in_stock":true},{"title":"8L90E ('14-'18 Gen I only) \/ Bare Harness \u0026 DIY Braid Kit","offer_id":58568725233824,"sku":"KIT-LT1-8L90-DIY","price":2004.99,"currency_code":"USD","in_stock":true},{"title":"8L90E ('14-'18 Gen I only) \/ Braided Loom Installed","offer_id":58568725266592,"sku":"KIT-LT1-8L90-BRAID","price":2054.99,"currency_code":"USD","in_stock":true},{"title":"10L80\/90E \/ Bare Harness, No Loom","offer_id":58568725299360,"sku":"KIT-LT1-10L80-BARE","price":2029.99,"currency_code":"USD","in_stock":true},{"title":"10L80\/90E \/ Bare Harness \u0026 DIY Braid Kit","offer_id":58568725332128,"sku":"KIT-LT1-10L80-DIY","price":2104.99,"currency_code":"USD","in_stock":true},{"title":"10L80\/90E \/ Braided Loom Installed","offer_id":58568725364896,"sku":"KIT-LT1-10L80-BRAID","price":2154.99,"currency_code":"USD","in_stock":true},{"title":"T56 (2-wire VSS, manual) \/ Bare Harness, No Loom","offer_id":58568725397664,"sku":"KIT-LT1-T56-BARE","price":1649.99,"currency_code":"USD","in_stock":true},{"title":"T56 (2-wire VSS, manual) \/ Bare Harness \u0026 DIY Braid Kit","offer_id":58568725430432,"sku":"KIT-LT1-T56-DIY","price":1724.99,"currency_code":"USD","in_stock":true},{"title":"T56 (2-wire VSS, manual) \/ Braided Loom Installed","offer_id":58568725463200,"sku":"KIT-LT1-T56-BRAID","price":1774.99,"currency_code":"USD","in_stock":true},{"title":"TR6060 (3-wire VSS, manual) \/ Bare Harness, No Loom","offer_id":58568725495968,"sku":"KIT-LT1-TR6060-BARE","price":1674.99,"currency_code":"USD","in_stock":true},{"title":"TR6060 (3-wire VSS, manual) \/ Bare Harness \u0026 DIY Braid Kit","offer_id":58568725528736,"sku":"KIT-LT1-TR6060-DIY","price":1749.99,"currency_code":"USD","in_stock":true},{"title":"TR6060 (3-wire VSS, manual) \/ Braided Loom Installed","offer_id":58568725561504,"sku":"KIT-LT1-TR6060-BRAID","price":1799.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/9720\/2848\/files\/GenVKitnewmaftube.jpg?v=1785649558"},{"product_id":"2014-gen-v-lt1-direct-injection-automatic-manual-transmission-standalone-harness","title":"2014+ Gen V LT1 (Direct Injection) Automatic\/Manual Transmission Standalone Harness","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eAPPLICATION:\u003c\/strong\u003e ALL Gen 5 LT direct-injected engines, 5.3L, 6.2L, 6.6L, from 2014-2026.\u003c\/p\u003e\u003cp\u003eThis is a harness-only kit — the ECM is sold separately. PSI's Gen V ECM line (PCM-2001, PCM-2003, PCM-2004, PCM-2006) covers the various Gen V LT applications; contact us to source the correct ECM part number for your specific engine and model year, or see our complete \u003ca href=\"\/products\/gen-5-direct-injection-2014-lt1-lt4-engine-controller-kit\"\u003eKIT-LT1 Engine Controller Kit\u003c\/a\u003e which bundles a programmed ECM (and TCM for 8\/10-speed) with the harness.\u003c\/p\u003e\u003ch3\u003eDBW Only — Important for OBS Installs\u003c\/h3\u003e\u003cp\u003eLike all Gen V direct-injection LT applications, this harness is drive-by-wire (DBW) only — there is no cable-throttle option. If you select \"Add Corvette Pedal (ACC-1007)\" you will still need our separate \u003ca href=\"\/products\/1973-1998-chevy-truck-drive-by-wire-throttle-pedal-bracket\"\u003e1973-1998 Chevy Truck Drive By Wire Throttle Pedal Bracket (BRK-7398, $65)\u003c\/a\u003e to mount that pedal correctly in an OBS cab.\u003c\/p\u003e\u003ch3\u003eParts Included\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eComplete engine and transmission wiring harness\u003c\/li\u003e\n\u003cli\u003eInstruction manual\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFuel Rail Pressure Sensor Type\u003c\/h3\u003e\u003cp\u003eNot offered as a variant (too granular to select by year alone) — please specify your engine's exact model year in the order notes at checkout so we ship the correct harness connector for your Fuel Rail Pressure sensor:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2014-2016: 4-wire\u003c\/li\u003e\n\u003cli\u003e2017 Corvette: 4-wire\u003c\/li\u003e\n\u003cli\u003e2017 Camaro\/Truck\/CTS-V: 3-wire\u003c\/li\u003e\n\u003cli\u003e2018+: 3-wire\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eConnections For\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFuse\/Relay Box\u003c\/li\u003e\n\u003cli\u003eFuel Pump Control (relay included)\u003c\/li\u003e\n\u003cli\u003eFan Controls\u003c\/li\u003e\n\u003cli\u003eCheck Engine Light, OBD2 Port\u003c\/li\u003e\n\u003cli\u003eAccelerator Pedal\u003c\/li\u003e\n\u003cli\u003eThrottle Body\u003c\/li\u003e\n\u003cli\u003eMAF Sensor\u003c\/li\u003e\n\u003cli\u003eMAP Sensor\u003c\/li\u003e\n\u003cli\u003eEngine Coolant Temp Sensor\u003c\/li\u003e\n\u003cli\u003eAlternator Control\u003c\/li\u003e\n\u003cli\u003e(2) Upstream Oxygen Sensors\u003c\/li\u003e\n\u003cli\u003eCrankshaft Position\u003c\/li\u003e\n\u003cli\u003eCamshaft Position\u003c\/li\u003e\n\u003cli\u003eFuel Injectors\u003c\/li\u003e\n\u003cli\u003eCoil Packs\u003c\/li\u003e\n\u003cli\u003eAutomatic or Manual Transmission Control\u003c\/li\u003e\n\u003cli\u003eKnock Sensors\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTransmission Compatibility\u003c\/h3\u003e\u003cp\u003eAll 8 + 10 speed TCM tuning REQUIRES your TUN (Transmission Unique Number). Without the TUN#, we cannot guarantee a compatible transmission, and warranties cannot be honored without this information.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e6L80\/90E:\u003c\/strong\u003e Must be 2013+ model year transmissions to work with a Gen 5 LT system.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8L80\/90E:\u003c\/strong\u003e 2014-2018 Gen 1 model years currently compatible. Gen 2 8-speeds (2019+) are NOT compatible.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10L80\/90E:\u003c\/strong\u003e All 2017-2018 Gen 1 10-speed transmissions are compatible. 2019-21 2WD Truck\/SUV and all 2019+ GM Performance and Camaro are compatible. 2022+ Gen 2 10-speed transmissions with electronic transmission range select (ETRS) are NOT compatible — these ETRS transmissions will only have a \"park\" and \"out of park\" position on the external shift lever on the driver side of the transmission.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFuel System\u003c\/h3\u003e\u003cp\u003eThis setup uses a fuel pump relay to send 12V power directly to a standard constant-supply fuel pump, paired with a return-style regulator (regulated to 78 psi) rather than the factory PWM fuel pump control module (FPCM). See our \u003ca href=\"\/collections\/obs-fuel-system-swap\"\u003eOBS Fuel System Swap collection\u003c\/a\u003e (KIT-1020 \/ KIT-1021) for compatible return-style fuel system pairings. If a PWM fuel pump \/ factory FPCM setup is required for your fuel tank, PSI also offers an add-on kit (KIT-1006) to accomplish this — contact us for details.\u003c\/p\u003e\u003ch3\u003eTuning Disclaimer\u003c\/h3\u003e\u003cp\u003eThe installed tune is a base\/startup tune, mirroring a factory OEM tune based on the options selected in your order. The tune will remove VATS (Vehicle Anti-Theft System), bypass VVT (if applicable), disable DOD (if applicable), and remove restrictions preventing operation of the engine when installed in a different vehicle.\u003c\/p\u003e\u003cp\u003eAny engine or transmission modifications will REQUIRE a custom tune to ensure proper operation and prevent serious damage. PSI Conversion cannot be held responsible for issues related to operation or performance when the engine\/transmission has been modified, or varies from the options selected when the tune was installed.\u003c\/p\u003e\u003ch3\u003eNotes\u003c\/h3\u003e\u003cp\u003eThese harnesses are designed for retrofitting '14+ LT1\/L83\/L86 GEN V engines from Camaro, Corvette, Suburban, Tahoe, Yukon, Escalade, Silverado, and Sierra into older muscle cars and street rods. All harnesses require PCM VATS removal, available through PSI — contact us for more information. Harnesses are professionally constructed from Brand New GM Factory\/OEM Connectors and TXL High Temperature Wire to GM Specifications, and are 100% quality inspected prior to shipping. Harness length is 4-5 feet from the rear of the cylinder head to the PCM mounting position, with a sliding grommet seal for a professional, leak-proof installation.\u003c\/p\u003e\u003cp\u003eReal-world proof: this exact harness has already been used in a GMC OBS truck LT swap by one of our verified customers (reviewer \"91 C1500\"), who confirmed it as a great fit with great pricing for a GMC OBS LT swap.\u003c\/p\u003e","brand":"PSI Conversion","offers":[{"title":"6L80\/6L90E (2013+) \/ Bare Harness, No Loom \/ No Pedal (Supply My Own)","offer_id":58568725692576,"sku":"HAR-LT1-6L80-BARE-NOPED","price":1029.0,"currency_code":"USD","in_stock":true},{"title":"6L80\/6L90E (2013+) \/ Bare Harness, No Loom \/ Add Corvette Pedal (ACC-1007)","offer_id":58568725725344,"sku":"HAR-LT1-6L80-BARE-CORV","price":1158.99,"currency_code":"USD","in_stock":true},{"title":"6L80\/6L90E (2013+) \/ Bare Harness \u0026 DIY Braid Kit \/ No Pedal (Supply My 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