BERYLIUM VALVE SEAT RING SET EJ205/EJ207/EJ255/EJ257 (TA310A-SB01A) 1637 Description_ASC DP51470NDX+GD1422 Description_ASM Rear S6K

Description_ASC DP51470NDX+GD1422 Description_ASM Rear S6K FMSI D1018 2004 thru 2008 AUDI S4 4

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

2018-19 Audi S4 V6-3

Professional installation is recommended to achieve optimal results

Engineered for exact fitment on F80 M3 and F82 M4 models

BERYLIUM VALVE SEAT RING SET EJ205/EJ207/EJ255/EJ257 (TA310A-SB01A) 1637 Description_ASC DP51470NDX+GD1422 Description_ASM Rear S6KThe 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