HKS RB26 Step 1 272 IN Performance Upgrade Kit (N)

This upgrade kit from HKS is engineered to enhance the performance potential of RB26 engines by providing the core components needed for the Step 1 272 IN conversion. Ideal for builders and tuners working on RB26 powerplants, the kit focuses on delivering a targeted performance increase while integrating with existing engine systems and supporting bolt-on modifications. Use this HKS Step 1 272 IN Performance Upgrade Kit as part of a measured tuning strategy to unlock higher RPM stability and improved engine response when matched with proper calibration and supporting parts.