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SKU: 4103-RF001 | UPC: 4957266553367
HKS Turbo Timer Wiring Harness (4103-RF001) 1997-2003 Subaru Impreza RS FT-2 WRX STi Forester Legacy
This genuine HKS Turbo Timer Wiring Harness (4103-RF001) delivers a plug-and-play connection for turbo timers on 1997-2003 Subaru Impreza RS (FT-2), WRX/STi GC8 GF8, Forester SF5 SG5 SG9, and Legacy BE5 BH5 models with EJ20 EJ20G EJ25 engines. Compatible with HKS Blitz Apexi Stri turbo timers it routes signals accurately from ECU to timer preventing oil coking and extending turbo life. Install without cutting factory wires for dependable operation in high-boost setups.
Key Features
- Genuine HKS Build: 100% authentic Japanese-made harness with OEM-grade connectors for vibration resistance and longevity.
- Plug-and-Play Fit: Pre-wired to match Subaru ECU pins and turbo timer plugs simplifying setup on Impreza Forester Legacy.
- Multi-Brand Compatibility: Works seamlessly with HKS Blitz Apexi Stri turbo timers on 97-00 Impreza RS FT-2 and listed models.
- Engine-Specific Design: Tailored wiring for EJ20 EJ20G EJ25 ensuring precise ignition cut and RPM signal relay.
- Heat-Resistant Materials: Insulated copper conductors withstand engine bay temperatures up to 105C for reliable daily driving.
Product Notes
- Confirm your turbo timer model matches HKS Blitz Apexi or Stri specifications before purchase.
- Harness includes color-coded wires and diagram for straightforward identification.
- Store in dry conditions to maintain connector integrity prior to installation.
Installation Notes
- Professional installation recommended.
- Locate ECU harness in passenger kick panel and turbo timer under dash for connections.
- Secure with factory clips no drilling or custom adapters needed.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1997-1998 | Subaru | Impreza | WRX/STi GC8 EJ20 |
| 1997-1998 | Subaru | Impreza Wagon | WRX/STi GF8 EJ20 |
| 1997-2002 | Subaru | Forester | SF5 EJ20G |
| 2002+ | Subaru | Forester | SG5 EJ20 |
| 2004+ | Subaru | Forester | SG9 EJ25 |
| 1998-2003 | Subaru | Legacy B4 | BE5 EJ20 |
| 1998-2003 | Subaru | Legacy Touring Wagon | BH5 EJ20 |
Why Choose HKS?
- Motorsport-proven components used in Super Taikyu and rally applications.
- Exact OEM-spec wiring reduces electrical resistance for faster signal response.
- Direct from HKS Japan with rigorous QC testing for Subaru fitment.
Frequently Asked Questions
-
Q: Will this harness fit 97-00 Impreza RS FT-2 with Blitz turbo timer?
A: Yes it connects directly to ECU B-pin connectors and supports Blitz Apexi Stri HKS timers on GC8 chassis EJ20 engines. -
Q: What gauge wire does it use and is it engine bay rated?
A: 0.5mm squared insulated copper wire rated for 105C continuous heat and automotive oils. -
Q: Does installation require ECU flashing or modifications?
A: No it taps existing harness signals plug-and-play with no ECU changes or vehicle alterations.
Shipping & Handling
- Method: UPS Ground USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Original HKS box 9x6x1.5 inches
- Weight: 0.44 lbs
HKS
HKS is a Japanese manufacturer of premium performance parts founded in 1973 that has been at the forefront of turbocharged engine development, producing turbochargers, exhaust systems, engine management, intercoolers, and supporting performance components for some of the most iconic Japanese sports cars ever built. The brand's GT and GTIII turbocharger series, Super Sequential Blow Off Valves, and Racing Suction intake kits are recognized globally as benchmark-quality products that combine Japanese manufacturing precision with decades of motorsport development experience. HKS products are particularly well-known in the Toyota Supra, Mitsubishi Evo, Subaru STI, Nissan GT-R, and Honda NSX communities, where the brand's heritage in building the world's fastest versions of these cars has created a loyal following among enthusiasts who want the best available components. From a simple racing suction kit to a complete GT turbo with intercooler and ECU tune, HKS provides an end-to-end perf...
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