BERYLIUM VALVE SEAT RING SET EJ205/EJ207/EJ255/EJ257 (TA310A-SB01A) 1637 Engineered for exact fitment on

Engineered for exact fitment on F80 M3 and F82 M4 models

VIS Racing Carbon Fiber Hood 09NSR352DMS-010C

and come with the AWE stamp of approval

Professional installation is recommended to achieve optimal results

Designed with a single mid-pipe and incorporating a DUMP right after the downpipes

BERYLIUM VALVE SEAT RING SET EJ205/EJ207/EJ255/EJ257 (TA310A-SB01A) 1637 Engineered for exact fitment onThe function of which valve sheet is asked, is maintaining air tightness with a valve, and generally wear resistance is required. However, with the engine used by high rotation and high load, the cooling performance of a valve sheet becomes very important further, and it is greatly concerned with an engine output. When engine is high rotation and high load, it is impossible to achieve high output from the engine if cooling performance of the cylinder