R33 HKS STEP2 Valve Springs

Notes: Japanese Domestic Market Special Order.

Features:

- Built to optimize valve movement
- Match the increased valvetrain movement
- Designed for use with HKS camshafts
- Manufactured using stringent shot-peening and heat treatment process for exceptional durability
- Specific design and construction reduce the risk of valve-float and coil-bind
- Ensure reliable long-lasting service life

As valve train dynamics change with the use of high performance cam profiles and greater lift, stiffer valve springs are needed to optimize valve movement. As stock springs cannot match the increased valvetrain movement, these stiffer springs from HKS are what the doctor ordered when changing to a high lift cam. Designed especially for use with HKS camshafts, these springs precisely match to their characteristics. The components are manufactured using a stringent shot-peening and heat treatment process that ensures durable and consistent spring rates over time. In addition, applications with high revving engines will benefit from HKS valve springs, as the risk of valve-float and coil-bind is greatly reduced due to their specific design and construction.

HKS is one of leading manufacturers of performance automotive parts. It offers a comprehensive line of superior quality coilovers, downpipes, transmissions, drop-in filters, pistons, superchargers, and more. The purpose of the company's foundation was to manufacture performance engine components and turbo kits which surpass OE parts. HKS pioneered the Japanese aftermarket performance industry by offering the first commercially available electronic turbo timer and boost controller.