HKS Full Turbo Charger Kit GTIII-RS For Nissan Silvia S14 S15 SR20DET 11003-AN018

SR20DET engines in the S14 and S15 Silvia/240SX are legendary for their tuning potential, but the factory turbo often becomes a limitation once boost and supporting mods are added. The HKS Full Turbo Charger Kit GTIII-RS (11003-AN018) is a complete high-mount upgrade that replaces the stock unit with the advanced GTIII-RS turbo, delivering progressive boost build-up for strong, usable power across the RPM range and an exhilarating driving feel. The kit includes a robust cast exhaust manifold, HKS dedicated wastegate for stable control at 68.6kPa (0.7kgf/cm²), stainless steel wastegate return, oil inlet components, and oil return pipe for a reliable, well-integrated installation.

Engineered for both street and track use, this kit offers excellent response and scalability, supporting power levels up to 500 HP with appropriate engine reinforcements, fueling, and tuning. The high-mount layout optimizes packaging and exhaust flow while maintaining compatibility with popular supporting modifications. Although suction piping, air cleaner, and heat shield are not included, the core components provide a strong foundation for serious SR20DET performance builds.

At Terra Firma Automotive, we supply this genuine HKS Full Turbo Charger Kit GTIII-RS as a premium turbo upgrade for S14 and S15 owners seeking substantial power gains and refined drivability. It transforms your SR20DET into a more responsive and capable engine while upholding the quality and engineering excellence HKS is known for. For enthusiasts ready to elevate their Silvia or 240SX to the next level, this GTIII-RS kit is one of the most advanced and rewarding upgrades available

 

• HKS Full Turbo Charger Kit GTIII-RS for S14 S15 SR20DET
• High-mount layout with GTIII-RS turbo for progressive boost delivery
• Robust cast exhaust manifold for durability and flow
• HKS dedicated wastegate for stable 68.6kPa (0.7kgf/cm²) boost control
• Stainless steel wastegate return pipe
• Includes oil inlet parts and oil return pipe
• Supports up to 500 HP with proper engine modifications
• Excellent response and power across the RPM range
• Ideal for street, track, and high-performance SR20DET builds
• Premium HKS engineering with proven real-world results
• Strong foundation for further intake, exhaust, and tuning upgrades
• Transforms SR20DET into a more powerful and engaging engine
• Trusted by Silvia enthusiasts for quality and performance
• Direct path to significant horsepower and torque gains
• Essential upgrade for serious S14 and S15 turbo builds
• ⚠️ 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.