Factory speed limiters in many performance vehicles, including automatic transmission models, cap top speed and restrict the full potential of highly tuned engines. The HKS SLD Type II SLC Speed Limiter Eliminator (4502-RA003) is a precision electronic device designed specifically for automatic transmission-equipped cars. It seamlessly removes the restrictive factory speed limiter, allowing your vehicle to reach its true performance ceiling with smoother, uninterrupted acceleration and higher achievable top speeds.

This Type II variant is engineered for reliable operation in automatic transmissions, providing precise control during high-speed runs on the drag strip or circuit. By eliminating the electronic restriction, it delivers improved throttle response and full power delivery throughout the RPM range, giving drivers the confidence to push their builds harder without artificial barriers. The compact design integrates cleanly into the vehicle's electronics, maintaining factory-like functionality while unlocking the performance enthusiasts demand.

At Terra Firma Automotive, we supply this genuine HKS SLD Type II SLC Speed Limiter Eliminator as a premium upgrade for automatic transmission owners seeking unrestricted performance. It is a simple yet highly effective modification that transforms how your vehicle behaves at the upper limits, making it an essential addition for serious track, drag, or high-speed enthusiasts. For builders looking to remove factory limitations and experience the full capability of their tuned engine and drivetrain, this HKS limiter eliminator is one of the most impactful and straightforward upgrades available.

 

• HKS SLD Type II SLC Speed Limiter Eliminator for Automatic Transmission
• Specifically designed for automatic transmission vehicles
• Completely removes factory-imposed speed limiter
• Enables higher top speeds and unrestricted acceleration
• Ideal for drag strip, circuit track, and high-speed applications
• Precise electronic control for smooth power delivery
• Compact design integrates seamlessly with vehicle electronics
• Maintains factory-like functionality while unlocking performance
• Simple yet highly effective performance modification
• Premium HKS engineering with proven real-world results
• Essential upgrade for fully tuned high-performance builds
• Enhances overall driving experience and vehicle potential
• Trusted by enthusiasts for reliability and effectiveness
• Perfect for automatic transmission Skyline and performance cars
• Direct path to experiencing your engine’s true capabilities
• ⚠️ Emissions / California Legal Disclaimer – Off-Road / Competition Use Only: This product is intended for off-road, competition, and track use only. It is not legal for sale or use on public roads or highways in California (or any other CARB-adopting state). For more information Click Here.