HKS 22001-AM001 Valve Spring Kit EVO 1~7 (see note!) (Old # 2201-RM001) ymm_22 The Mahle PowerPak Plus piston

The Mahle PowerPak Plus piston and ring kit is engineered for high-performance applications in the 4B11T engine platform

FITMENT: A common issue with a lot aftermarket charge pipes is poor fitment

The Wagner Tuning Performance Charge Pipe Kit Ø57mm is designed for the BMW M2 Competition

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HKS 22001-AM001 Valve Spring Kit EVO 1~7 (see note!) (Old # 2201-RM001) ymm_22 The Mahle PowerPak Plus pistonValve Spring for High RPM Engines Valve spring performance is very important for valves to follow accurate cam profile. 1. Compatible with High RPM Engines As engine rpm rises, valves must open and close in a shorter time and so requires stronger Valve Springs in order to apply sufficient pressure. 2. Ensuring Close Contact When changing to high lift cams, proper contact between the valves and the cams can be lost which leads to valve float. HKS Valve