{"title":"Honda K-Swap Chassis Adapters \u0026 Subharnesses","description":"\u003ch1 data-start=\"586\" data-end=\"632\"\u003eHonda K-Swap Chassis Adapters \u0026amp; Subharnesses\u003c\/h1\u003e\n\u003cp data-start=\"634\" data-end=\"815\"\u003eVTEC Innovations designs and supplies Honda K-Swap chassis adapter harnesses and subharness systems engineered to integrate K-Series engines into compatible Honda chassis platforms.\u003c\/p\u003e\n\u003cp data-start=\"817\" data-end=\"913\"\u003eThese systems provide structured electrical conversion solutions for clean K-swap installations.\u003c\/p\u003e\n\u003chr data-start=\"915\" data-end=\"918\"\u003e\n\u003ch2 data-start=\"920\" data-end=\"952\"\u003eChassis Integration Solutions\u003c\/h2\u003e\n\u003cp data-start=\"954\" data-end=\"1007\"\u003eK-Swap adapter harnesses supporting integration into:\u003c\/p\u003e\n\u003cp data-start=\"1009\" data-end=\"1087\"\u003e• EG Civic\u003cbr data-start=\"1019\" data-end=\"1022\"\u003e• EK Civic\u003cbr data-start=\"1032\" data-end=\"1035\"\u003e• DC2 \/ Integra\u003cbr data-start=\"1050\" data-end=\"1053\"\u003e• Other compatible Honda chassis\u003c\/p\u003e\n\u003cp data-start=\"1089\" data-end=\"1175\"\u003eDesigned to bridge factory chassis wiring with K-Series engine and ECU configurations.\u003c\/p\u003e\n\u003chr data-start=\"1177\" data-end=\"1180\"\u003e\n\u003ch2 data-start=\"1182\" data-end=\"1216\"\u003eSubharness \u0026amp; Conversion Systems\u003c\/h2\u003e\n\u003cp data-start=\"1218\" data-end=\"1271\"\u003ePlatform-specific subharnesses engineered to support:\u003c\/p\u003e\n\u003cp data-start=\"1273\" data-end=\"1393\"\u003e• OBD conversions\u003cbr data-start=\"1290\" data-end=\"1293\"\u003e• Sensor interface routing\u003cbr data-start=\"1319\" data-end=\"1322\"\u003e• ECU connector adaptation\u003cbr data-start=\"1348\" data-end=\"1351\"\u003e• Interior-to-engine harness integration\u003c\/p\u003e\n\u003cp data-start=\"1395\" data-end=\"1459\"\u003eBuilt for reliable signal routing and proper grounding strategy.\u003c\/p\u003e\n\u003chr data-start=\"1461\" data-end=\"1464\"\u003e\n\u003ch2 data-start=\"1466\" data-end=\"1499\"\u003eStandalone \u0026amp; ECU Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"1501\" data-end=\"1552\"\u003eOur K-Swap wiring systems support integration with:\u003c\/p\u003e\n\u003cp data-start=\"1554\" data-end=\"1640\"\u003e• Hondata KPro\u003cbr data-start=\"1568\" data-end=\"1571\"\u003e• FuelTech\u003cbr data-start=\"1581\" data-end=\"1584\"\u003e• Haltech\u003cbr data-start=\"1593\" data-end=\"1596\"\u003e• MoTeC\u003cbr data-start=\"1603\" data-end=\"1606\"\u003e• Other standalone ECU platforms\u003c\/p\u003e\n\u003cp data-start=\"1642\" data-end=\"1727\"\u003eEach configuration is engineered to maintain signal integrity and clean installation.\u003c\/p\u003e\n\u003chr data-start=\"1729\" data-end=\"1732\"\u003e\n\u003ch2 data-start=\"1734\" data-end=\"1774\"\u003eStructured K-Series Conversion Wiring\u003c\/h2\u003e\n\u003cp data-start=\"1776\" data-end=\"1947\"\u003eAll K-Swap adapters and subharnesses are developed to support clean engine bay layout, stable electrical performance, and long-term durability in performance Honda builds.\u003c\/p\u003e\n\u003cp data-start=\"1949\" data-end=\"2040\"\u003eFor full custom K-Swap harness systems, visit our Honda K-Series Engine Harness collection.\u003c\/p\u003e","products":[{"product_id":"99-01-civic-ek-k-series-chassis-subharness-kswap","title":"K-Series Chassis Subharness – 99-01 Honda Civic EK K-Swap | VTI","description":"\u003ch1\u003eK-Series Chassis Subharness – 99-01 Honda Civic EK K-Swap | VTI\u003c\/h1\u003e\u003ch2\u003eClean K-Swap Chassis Integration. No Interior Splicing.\u003c\/h2\u003e\u003cp\u003eThe VTI K-Series chassis subharness provides a clean, reliable connection between your K20 or K24 engine harness and the factory chassis wiring of your 99-01 Honda Civic EK. Proper signal routing, OEM-style connectors, and labeled leads — everything you need for a clean K-swap without hacking up your interior wiring.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFunction \u0026amp; Integration\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTachometer signal routing\u003c\/li\u003e\n\u003cli\u003eMIL \/ Check Engine Light support\u003c\/li\u003e\n\u003cli\u003eVehicle Speed Sensor integration\u003c\/li\u003e\n\u003cli\u003eOEM-style chassis connector interface\u003c\/li\u003e\n\u003cli\u003eLabeled ECU-side termination leads\u003c\/li\u003e\n\u003cli\u003eCompatible with Hondata and most standalone ECU systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eK20A, K20A2, K20Z\u003c\/li\u003e\n\u003cli\u003eK24A, K24A2\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eConstruction\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTXL automotive-grade wiring\u003c\/li\u003e\n\u003cli\u003eOEM-style connector interfaces\u003c\/li\u003e\n\u003cli\u003eClean routing and strain relief\u003c\/li\u003e\n\u003cli\u003eBuilt and inspected in-house\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCustom bulkhead or motorsport configurations available upon request.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Chassis integration subharness only. Main K-Series engine harness sold separately.\u003c\/p\u003e","brand":"VTI","offers":[{"title":"Default Title","offer_id":47189683994816,"sku":"vti36","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/7956\/1152\/files\/Honda_99_01_Civic_EK_K-swap_chassis_subharness_plug_and_play_wiring.webp?v=1770729763"},{"product_id":"k20-k24-k-series-k-swap-conversion-wiring-harness-for-ecu-v2-obd1-92-95-honda-civic-94-95-integra-dc2","title":"K-Series Chassis Subharness – 92-95 Honda Civic EG \/ 94-95 Integra K-Swap | VTI","description":"\u003ch1\u003eK-Series Chassis Subharness – 92-95 Honda Civic EG \/ 94-95 Integra K-Swap | VTI\u003c\/h1\u003e\u003ch2\u003eClean K-Swap Chassis Integration. No Interior Splicing.\u003c\/h2\u003e\u003cp\u003eThe VTI K-Series chassis subharness provides a clean, reliable connection between your K20 or K24 engine harness and the factory chassis wiring of your 92-95 Honda Civic EG or 94-95 Acura Integra. Proper signal routing, OEM-style connectors, and labeled leads — everything you need for a clean K-swap without hacking up your interior wiring.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eFunction \u0026amp; Integration\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTachometer signal routing\u003c\/li\u003e\n\u003cli\u003eMIL \/ Check Engine Light support\u003c\/li\u003e\n\u003cli\u003eVehicle Speed Sensor integration\u003c\/li\u003e\n\u003cli\u003eOEM-style chassis connector interface\u003c\/li\u003e\n\u003cli\u003eLabeled ECU-side termination leads\u003c\/li\u003e\n\u003cli\u003eCompatible with Hondata and most standalone ECU systems\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eEngine Compatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eK20A, K20A2, K20Z\u003c\/li\u003e\n\u003cli\u003eK24A, K24A2\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eConstruction\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTXL automotive-grade wiring\u003c\/li\u003e\n\u003cli\u003eOEM-style connector interfaces\u003c\/li\u003e\n\u003cli\u003eClean routing and strain relief\u003c\/li\u003e\n\u003cli\u003eBuilt and inspected in-house\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eCustom bulkhead or motorsport configurations available upon request.\u003c\/p\u003e\u003chr\u003e\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Chassis integration subharness only. Main K-Series engine harness sold separately.\u003c\/p\u003e","brand":"VTI","offers":[{"title":"Default Title","offer_id":47203166027968,"sku":"vti39","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/7956\/1152\/files\/Honda_92_95_Civic_EG_and_94_95_Integra_K-swap_chassis_subharness_with_high_quality_TXL_wiring.webp?v=1770729763"},{"product_id":"96-98-civic-k-series-subharness-ek-kswap","title":"96-98 Honda Civic K-Series Subharness (EK K-Swap Conversion)","description":"\u003ch1 data-start=\"2299\" data-end=\"2333\"\u003eHonda K-Series Engine Subharness\u003c\/h1\u003e\n\u003ch2 data-start=\"2335\" data-end=\"2392\"\u003eStructured Chassis Integration for K-Swap Applications\u003c\/h2\u003e\n\u003cp data-start=\"2394\" data-end=\"2575\"\u003eThe VTEC Innovations K-Series subharness provides a clean and reliable connection between your K20 or K24 engine harness and the factory chassis wiring of supported Honda platforms.\u003c\/p\u003e\n\u003cp data-start=\"2577\" data-end=\"2753\"\u003eDesigned for Civic, CRX, Integra, Prelude, and other compatible chassis configurations, this harness ensures proper signal routing while maintaining critical vehicle functions.\u003c\/p\u003e\n\u003cp data-start=\"2755\" data-end=\"2819\"\u003eSpecific chassis compatibility is defined in each product title.\u003c\/p\u003e\n\u003chr data-start=\"2821\" data-end=\"2824\"\u003e\n\u003ch2 data-start=\"2826\" data-end=\"2851\"\u003eFunction \u0026amp; Integration\u003c\/h2\u003e\n\u003cp data-start=\"2853\" data-end=\"3097\"\u003e• Tachometer signal routing\u003cbr data-start=\"2880\" data-end=\"2883\"\u003e• MIL \/ Check Engine Light support\u003cbr data-start=\"2917\" data-end=\"2920\"\u003e• Vehicle Speed Sensor integration\u003cbr data-start=\"2954\" data-end=\"2957\"\u003e• OEM-style chassis connector interface\u003cbr data-start=\"2996\" data-end=\"2999\"\u003e• Labeled ECU-side termination leads\u003cbr data-start=\"3035\" data-end=\"3038\"\u003e• Compatible with Hondata and most standalone ECU systems\u003c\/p\u003e\n\u003cp data-start=\"3099\" data-end=\"3156\"\u003eBuilt for dependable street and enthusiast-level K-swaps.\u003c\/p\u003e\n\u003chr data-start=\"3158\" data-end=\"3161\"\u003e\n\u003ch2 data-start=\"3163\" data-end=\"3186\"\u003eConstruction Details\u003c\/h2\u003e\n\u003cp data-start=\"3188\" data-end=\"3323\"\u003e• OEM-style connector interfaces\u003cbr data-start=\"3220\" data-end=\"3223\"\u003e• TXL automotive-grade wiring\u003cbr data-start=\"3252\" data-end=\"3255\"\u003e• Clean routing and strain relief\u003cbr data-start=\"3288\" data-end=\"3291\"\u003e• Built and inspected in-house\u003c\/p\u003e\n\u003cp data-start=\"3325\" data-end=\"3393\"\u003eCustom bulkhead or motorsport configurations available upon request.\u003c\/p\u003e\n\u003chr data-start=\"3395\" data-end=\"3398\"\u003e\n\u003ch2 data-start=\"3400\" data-end=\"3423\"\u003eEngine Compatibility\u003c\/h2\u003e\n\u003cp data-start=\"3425\" data-end=\"3441\"\u003eSupports common:\u003c\/p\u003e\n\u003cp data-start=\"3443\" data-end=\"3479\"\u003eK20A \/ K20A2 \/ K20Z\u003cbr data-start=\"3462\" data-end=\"3465\"\u003eK24A \/ K24A2\u003c\/p\u003e\n\u003cp data-start=\"3481\" data-end=\"3549\"\u003eRefer to the product title for exact chassis and year configuration.\u003c\/p\u003e\n\u003chr data-start=\"3551\" data-end=\"3554\"\u003e\n\u003ch2 data-start=\"3556\" data-end=\"3568\"\u003eImportant\u003c\/h2\u003e\n\u003cp data-start=\"3570\" data-end=\"3678\"\u003eThis listing is for the chassis integration subharness only.\u003cbr data-start=\"3630\" data-end=\"3633\"\u003eMain K-Series engine harness sold separately.\u003c\/p\u003e","brand":"VTI","offers":[{"title":"Default Title","offer_id":47203203186880,"sku":"vti40","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/7956\/1152\/files\/0D8DA901-5B18-4CEE-A657-66EC8041AD5A.jpg?v=1777520739"},{"product_id":"products-fueltech-ft550-k-series-standalone-adapter","title":"FuelTech FT550 K-Series Plug \u0026 Play Standalone Adapter | VTI","description":"\u003ch1\u003eFuelTech FT550 K-Series Plug \u0026amp; Play Standalone Adapter | VTI\u003c\/h1\u003e\u003cp\u003eThe complete plug-and-play solution for converting your Honda K-Series engine harness to a FuelTech FT550 standalone ECU. Built using Teflon (mil-spec style) wire and flame-resistant loom materials, this adapter is designed for reliability, motorsport durability, and clean integration — completely prewired and ready to install.\u003c\/p\u003e\u003cp\u003eThis is not a universal patch harness. This is a structured conversion adapter built for serious standalone setups.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eDesigned For\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eK20 \u0026amp; K24 engine platforms\u003c\/li\u003e\n\u003cli\u003eAcura RSX (DC5)\u003c\/li\u003e\n\u003cli\u003eHonda EP3 Civic Si\u003c\/li\u003e\n\u003cli\u003eK-swapped chassis running OEM-style K harnesses\u003c\/li\u003e\n\u003cli\u003eStreet, drag, drift, and road race builds\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eIntegrated Connections\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAUX1 \u0026amp; AUX2\u003c\/strong\u003e — auxiliary output capability\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eINJ Expansion\u003c\/strong\u003e — additional injector outputs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCANBUS\u003c\/strong\u003e — direct connection to FT550 for dash, logging \u0026amp; peripherals\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA \u0026amp; B\u003c\/strong\u003e — main FT550 ECU connectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRVS\u003c\/strong\u003e — rear speed sensor input for traction control \u0026amp; data logging\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAll circuits cleanly integrated — no unnecessary splicing or patch wiring.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eConstruction Details\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTeflon wire construction\u003c\/li\u003e\n\u003cli\u003eFlame-resistant loom material\u003c\/li\u003e\n\u003cli\u003eProfessionally terminated connectors\u003c\/li\u003e\n\u003cli\u003eFully prewired and labeled\u003c\/li\u003e\n\u003cli\u003eMotorsport-grade assembly standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eImportant Installation Notes\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eConnector Fitment:\u003c\/strong\u003e When using with a stock K20 harness, one connector lock will require minor modification for proper fitment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eEP3 \/ RSX Main Relay:\u003c\/strong\u003e When installing in an EP3 Civic Si or K20 RSX chassis, an additional relay must be added to properly initiate and control the main relay system. Verify your chassis configuration before ordering.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eWhat's Included\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFully assembled FT550 K-Series adapter\u003c\/li\u003e\n\u003cli\u003eBasic startup FuelTech base map\u003c\/li\u003e\n\u003cli\u003eInstallation notes\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eOptional tuning support available upon request — leave tuning requests in checkout notes.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eWhy VTI?\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eTrue plug-and-play integration — no guesswork\u003c\/li\u003e\n\u003cli\u003eClean standalone conversion strategy\u003c\/li\u003e\n\u003cli\u003eProper auxiliary expansion support\u003c\/li\u003e\n\u003cli\u003eCANBUS integration done correctly\u003c\/li\u003e\n\u003cli\u003eBuilt by experienced harness manufacturers\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNeed a custom FT550 configuration? Contact us directly for advanced integration, additional outputs, or full standalone harness builds.\u003c\/p\u003e","brand":"VTI","offers":[{"title":"Default Title","offer_id":47463402373312,"sku":"vti515","price":350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/7956\/1152\/files\/IMG_9699-Enhanced-NR.webp?v=1771089110"},{"product_id":"fueltech-ft450-k-series-adapter-harness-v2","title":"FuelTech FT450 Plug \u0026 Play Adapter Harness – Honda K-Series Standalone (V2) | VTI","description":"\u003ch1\u003eFuelTech FT450 Plug \u0026amp; Play Adapter Harness – Honda K-Series Standalone (V2) | VTI\u003c\/h1\u003e\u003cp\u003eThe cleanest way to run a FuelTech FT450 on your Honda K-Series — without cutting or splicing your factory engine harness. This V2 adapter is manufactured by CarrotTopTuning and supplied through VTI, engineered for reliable signal integrity, stable power distribution, and future expansion capability right out of the box.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003ePlatform Compatibility\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHonda K20 \u0026amp; K24 platforms\u003c\/li\u003e\n\u003cli\u003eCompatible with factory and aftermarket K-Series engine harnesses\u003c\/li\u003e\n\u003cli\u003eDesigned specifically for the FuelTech FT450 ECU\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eWhat's Built In (V2)\u003c\/h2\u003e\u003ch3\u003eDTM12P Expansion Connector\u003c\/h3\u003e\u003cp\u003eIntegrated 12-pin DTM expansion connector provides IGN12V supply, dedicated 5V reference power, and stable power delivery for auxiliary sensors and control modules — clean expansion without additional harness modification.\u003c\/p\u003e\u003ch3\u003eRear Wheel Speed Sensor Extension\u003c\/h3\u003e\u003cp\u003eDedicated pre-wired extension for accurate speed signal transfer, reliable traction control input, and stable speed-based tuning data. Critical for advanced performance tuning and data logging.\u003c\/p\u003e\u003ch3\u003eCANBUS A Connector\u003c\/h3\u003e\u003cp\u003eIntegrated CAN-A connector enables high-speed ECU communication, expansion module integration, advanced telemetry support, and digital dash compatibility.\u003c\/p\u003e\u003chr\u003e\u003ch2\u003eV2 Construction Standard\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eHigher-grade Teflon insulated wiring throughout\u003c\/li\u003e\n\u003cli\u003eDeveloped slack lengths for clean, stress-free routing\u003c\/li\u003e\n\u003cli\u003eProper termination and strain relief at all connections\u003c\/li\u003e\n\u003cli\u003eCarrotTopTuning branded construction — proven in performance applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003chr\u003e\u003ch2\u003eWhy Purchase Through VTI?\u003c\/h2\u003e\u003cp\u003eVTI supplies and supports CarrotTopTuning adapter systems within structured standalone integration builds. Technical guidance and integration support available upon request — we don't just sell you a harness and wish you luck.\u003c\/p\u003e","brand":"VTI","offers":[{"title":"Default Title","offer_id":47495243137216,"sku":"vti522","price":245.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/7956\/1152\/files\/IMG_9366.webp?v=1771357017"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/7956\/1152\/collections\/Plug_and_play_K-swap_wiring_subharness_for_Honda_Civic_EG_and_Integra_swaps.webp?v=1770651372","url":"https:\/\/www.vtecinnovations.com\/collections\/honda-k-swap-chassis-adapters.oembed","provider":"VTI","version":"1.0","type":"link"}