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Street car owners can benefit from smoother acceleration and mid-range power
The BMW M42 engine
2018-Present G05 xDrive25i / sDrive25i
6 cyl BMW M52 / M54 Pro-H 3/8
Mini Cooper S
BMW S63 Valve Springs by SuperTech 1301004 Street car owners can benefitEnhance the performance of your BMW S63 engine with the SuperTech High Performance Valve Spring Kit. This precision engineered kit offers a notable seat pressure of 83 lbs and accommodates a maximum lift of 12 mm, ensuring optimal valve operation even at high RPMs. Designed to replace OEM part numbers: 11340039494, 11340054492, 11347578825, 11347572451, 11347504271, 11347614134, and 11340150843, this kit is the ideal upgrade for serious enthusiasts
