RB26DETT engines in the R32, R33, and R34 Skyline GT-R require robust pistons when increasing boost, adding cams, or pursuing higher power levels. The HKS STEP2 Forged Piston Kit 86mm (2103-RN020) is a complete, ready-to-install solution featuring forged aluminum pistons with nickel-plated surfaces and top ring lands. This advanced plating provides superior resistance to abnormal combustion and detonation, significantly improving durability and longevity under high-stress conditions.
Each set includes piston rings, wrist pins, and retaining clips, ensuring everything needed for a professional build. The 86mm bore size is precisely matched for Step 2 VCam applications, and the design eliminates the need for additional boring or honing, simplifying the engine rebuild process while maintaining factory-like fitment and reliability. When paired with HKS connecting rods, these pistons deliver exceptional response, balanced power delivery, and the strength required for serious performance tuning.
At Terra Firma Automotive, we supply this genuine HKS STEP2 Forged Piston Kit as a premium internal upgrade for RB26DETT owners seeking increased power and durability. Engineered with HKS’s extensive racing experience, these pistons provide the precision and resilience needed for both street and competition builds. For enthusiasts ready to strengthen their RB26 and unlock greater performance potential, this STEP2 kit is one of the most reliable and effective upgrades available for the legendary Skyline platform.
- HKS STEP2 Forged Piston Kit 86mm for RB26DETT
- Complete set includes pistons, rings, wrist pins, and retaining clips
- Nickel-plated surfaces and top ring lands for superior detonation resistance
- 86mm bore size optimized for Step 2 VCam applications
- No boring or honing required for straightforward installation
- Forged aluminum construction for high strength and durability
- Ideal for high-boost and high-RPM performance builds
- Enhances engine response and overall power delivery
- Designed for reliable operation with upgraded cams and turbos
- Premium HKS engineering with proven racing heritage
- Direct upgrade for R32, R33, and R34 GT-R engines
- Supports higher power goals with improved longevity
- Trusted by professional builders for precision and quality
- Essential component for optimized RB26 internal upgrades
- Perfect foundation for serious high-performance engine 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.
Questions & Answers
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Do these come with rods as well?
This HKS STEP2 Forged Piston Kit includes forged aluminum pistons, piston rings, and wrist pins, along with retaining clips for the pins. However, it does not include connecting rods (which are sold separately as a matching option for this kit). This is a complete piston set for an 86mm bore, designed for direct fitment without boring or honing. We updated the picture to make it clearer. Thanks!