HKS Type 1 Speed Limit Defencer HKS HKS4502-RA002
HKS Type 1 Speed Limit Defencer HKS HKS4502-RA002
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HKS Type 1 Speed Limit Defencer

HKS
HKS4502-RA002
4957266548257
Gauge Calibration Tools
5 Units In Stock - Ships Next Business Day
FREE Shipping, HKS, Specials
$ 160.00
FREE Ground Shipping!
$ 160.00

SKU: 4502-RA002 | UPC: 4957266548257

HKS Type 1 Speed Limit Defencer for 1989-2007 Nissan Silvia Skyline Subaru Impreza Toyota Supra Mazda RX-7

The HKS Type 1 Speed Limit Defencer connects inline with the vehicle speed sensor to eliminate factory-imposed speed limits typically set at 180 km/h on JDM cars. It fits a wide range of 1989-2007 Japanese performance vehicles including Nissan Silvia S13-S15, Skyline R32-R34, Subaru Impreza GC8-GDB, Toyota Supra JZA80, and Mazda RX-7 FC-FD. Drivers gain access to unrestricted top speeds with reliable signal interruption and no permanent modifications.

Key Features

  • Plug-and-Play Harness: Direct connector matches OEM speed sensor plugs for quick install without wire cutting or splicing
  • Operation LED Indicator: Green light confirms device activation when speed exceeds limiter threshold
  • Pulse Signal Compatibility: Designed for 4-pulse per rotation vehicle speed sensors common in 1990s-2000s JDM ECUs
  • Compact Aluminum Housing: Measures 2.2 x 1.6 x 0.9 inches weighs 1.8 oz for discreet mounting in engine bay or cabin
  • Adjustable Defeat Threshold: Effectively bypasses 180 km/h or 112 mph limits while preserving normal speedometer function

Product Notes

  • Confirm vehicle uses pulse-type speed signal prior to purchase using HKS compatibility chart
  • Use on closed courses or off public roads where permitted by local laws
  • Arrives in factory-sealed HKS box with instructions and harness

Installation Notes

  • Professional installation recommended.
  • Locate VSS connector near transmission or ECU typically 2-pin white or black plug
  • Secure with included zip ties no additional hardware required

This Part Fits

Year Make Model Submodel
1989-1994 Nissan 240SX S13
1989-1993 Nissan Silvia S13 RPS13
1994-1999 Nissan Silvia S14 S14A
1999-2002 Nissan Silvia S15 Spec-R
1993-1998 Nissan Skyline R33 GT-R
1998-2002 Nissan Skyline R34 GT-R
1993-2000 Subaru Impreza GC8 WRX STI
2001-2007 Subaru Impreza GDB WRX STI
1993-2002 Toyota Supra JZA80
1992-2002 Mazda RX-7 FD3S

Why Choose HKS?

  • Established 1973 as leading JDM performance brand
  • Engineered in Japan for exact OEM integration
  • Backed by motorsport testing on track-proven components

Frequently Asked Questions

  • Q: Does this fit my 2000 Subaru Impreza WRX GC8?
    A: Yes it plugs into the pulse-type VSS connector on GC8 models verify connector shape matches 2-pin OEM
  • Q: What materials are used in construction?
    A: Die-cast aluminum case with waterproof harness insulation and gold-plated terminals for corrosion resistance
  • Q: What warranty coverage applies?
    A: One-year limited manufacturer warranty against defects covers electronics and harness

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Original HKS retail box 5 x 4 x 2 inches
  • Weight: 0.25 lbs

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HKS

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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