Subaru Legacy Tuning Tools

Looking for high performance or racing parts for your Legacy? Look no further than VividRacing for over 300,000 parts and accessories including engine components, suspension, intake, wheels & tires, brakes, body kits and more. VividRacing won't be outdone on quality, service or delivery. It's our mission to provide you with the best purchase experience hands down, when buying racing and performance parts for your Legacy Not finding the exact part you wanted? Call our Legacy technicians now -- they'll be able to help you locate the racing part or upgrade you're looking for. In certain cases, we make our own parts to get exactly the performance we want.

View all Legacy Tuning Tools products

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	AEM ECU Extension Harness Subaru Legacy EJ20G 90-94 Model Number: 30-2983 View Price AEM's Universal ECU Patch/Extension Harnesses work with most engine management systems and allow you to install turbo timers, data loggers and other ancillary electronics without having to cut and splice into your factory wiring harness. Features: Never cut/splice the factory wiring harness again! Easy out-of-the-car access for an ancillary wiring Troubleshooting can be done outside of the vehicle Easy removal of any device that is no longer desired Constructed with original ECU and harnes...
	AEM ECU Extension Harness Subaru Legacy EJ20H 93-96 Model Number: 30-2983 View Price AEM's Universal ECU Patch/Extension Harnesses work with most engine management systems and allow you to install turbo timers, data loggers and other ancillary electronics without having to cut and splice into your factory wiring harness. Features: Never cut/splice the factory wiring harness again! Easy out-of-the-car access for an ancillary wiring Troubleshooting can be done outside of the vehicle Easy removal of any device that is no longer desired Constructed with original ECU and harnes...
	AEM ECU Extension Harness Subaru Legacy EJ20H 96-98 Model Number: 30-2983C View Price AEM's Universal ECU Patch/Extension Harnesses work with most engine management systems and allow you to install turbo timers, data loggers and other ancillary electronics without having to cut and splice into your factory wiring harness. Features: Never cut/splice the factory wiring harness again! Easy out-of-the-car access for an ancillary wiring Troubleshooting can be done outside of the vehicle Easy removal of any device that is no longer desired Constructed with original ECU and harnes...
	AEM ECU Extension Harness Subaru Legacy EJ20R 96-98 Model Number: 30-2983C View Price AEM's Universal ECU Patch/Extension Harnesses work with most engine management systems and allow you to install turbo timers, data loggers and other ancillary electronics without having to cut and splice into your factory wiring harness. Features: Never cut/splice the factory wiring harness again! Easy out-of-the-car access for an ancillary wiring Troubleshooting can be done outside of the vehicle Easy removal of any device that is no longer desired Constructed with original ECU and harnes...
	HKS F-CON Harness Subaru Legacy EJ20 03-06 Model Number: 42002-AF001 View Price F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...
	HKS F-CON Harness Type FP5-7 Subaru Legacy EJ206 \| EJ208 02-04 Model Number: 4202-RF008 View Price F-CON iS can control the latest advanced engines. Just connect to a stock ECU with a vehicle specified harness without modification. HKS "F-CON iS" is a piggy-back ECU for fuel and ignition management as well as new features. Functions for fuel and ignition controls are inherited from the previous model F-CON SZ. In addition to it, function to collect OBD II diagnosis data was added for correction of setting due to stock close-loop correction values when intake/exhaust parts are upgraded or boos...