HKS Step 2 Valve Spring Upgrade Set RB26DETT Skyline GT-R 22001-AN001

Vehicle Fitment

• Nissan Skyline GT-R BNR32 / BCNR33 / BNR34 (RB26DETT)

Fitment Notes

• Step 2 upgrade - intended for use with high-lift aftermarket camshafts; confirm your specific cam profile's spring pressure requirements match this Step 2 spring rate

Features

• Prevents valve float and maintains accurate valve-to-cam contact when running high-lift aftermarket camshafts
• Manufactured from high-quality materials with advanced heat treatment and shot-peening for durability
• Low-inertia spring design built to withstand sustained high-RPM operation
• Ensures smooth engine operation and improved reliability at elevated RPM ranges

Specifications

• Upgrade Level: Step 2
• Construction: Heat-treated, shot-peened spring material

Included Components

• 1x Set of Valve Springs (full engine set)

Product Description

The HKS 22001-AN001 is a Step 2 valve spring upgrade set built for the Nissan Skyline GT-R's RB26DETT engine, designed to maintain proper valve control when running high-lift aftermarket camshafts. Accurate valve-to-cam contact is critical for reliable high-RPM operation, and stock springs are often unable to keep pace with more aggressive cam profiles.

Manufactured from high-quality materials with advanced heat treatment and shot-peening, these springs are engineered to be durable and low-inertia, reducing the risk of valve float or coil-bind at high engine speeds. A common pairing for RB26 builds running upgraded HKS camshafts (such as the S2 or S3 profiles covered elsewhere in HKS's RB26 lineup), this Step 2 spring set helps unlock the full potential of a built engine while improving reliability under sustained high-RPM use.