RB26DETT engines in the R32, R33, and R34 Skyline GT-R reach new heights of performance when displacement is increased while maintaining exceptional high-RPM capability and reliability. The HKS 2.8L Kit STEP 2 87mm Full Kit (21004-AN004) raises capacity to 2771cc with 87mm forged pistons featuring nickel plating for superior anti-knocking properties and top-ring stability, plus a molybdenum-coated skirt for reduced friction and smoother break-in. Paired with a full counterweighted crankshaft (hollowed at pin journals and center to lighten rotating mass) and high-strength H-beam connecting rods, this kit maximizes throttle response and torque output while supporting up to 9000rpm.
Recommended for GTIII-RS, GTIII-4R, and similar high-performance turbos, the STEP 2 kit delivers substantial gains in both low-end torque and top-end power, targeting around 788 HP with proper supporting modifications. HKS’s meticulous engineering ensures the components work harmoniously to extract the most from the turbocharger, providing smoother acceleration and stronger overall drivability. Boring and honing of the block is required for installation, with no full flow modification needed, making it a practical choice for serious overhauls.
At Terra Firma Automotive, we supply this genuine HKS 2.8L Kit STEP 2 87mm Full Kit as a premium engine build solution for RB26DETT owners who want serious power and torque. It transforms your engine into a larger, more responsive unit while upholding the durability and precision HKS is known for. For enthusiasts ready to take their R32, R33, or R34 to the next level, this STEP 2 kit is one of the most advanced and rewarding upgrades available for the legendary RB26 platform.
- HKS 2.8L Kit STEP 2 87mm Full Kit for RB26DETT
- Increases displacement to 2771cc with 87mm forged pistons
- Nickel-plated pistons for anti-knocking and ring stability
- Molybdenum-coated piston skirt for reduced friction
- Full counterweighted crankshaft with hollowed journals for lighter rotating mass
- High-strength H-beam connecting rods (stock rods optional)
- Recommended for GTIII-RS, GTIII-4R and similar turbos
- Target engine output approximately 788 HP
- Allowable RPM up to 9000rpm
- Ideal for high-performance overhauls and big-power builds
- Boring and honing modification required
- Premium HKS engineering with proven real-world results
- Enhances low-to-mid range torque and high-RPM power delivery
- Direct upgrade for R32, R33, and R34 GT-R engines
- Supports extreme tuning levels with exceptional durability
- ⚠️ 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.
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