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Using Custom Age 625+ head studs enables you to increase boost levels without worrying about the cylinder head lifting
They are designed to replace BMW part #11240618006 in the BMW M30B25
The BMW M42 engine
68 A/R with 3 5/8" V-Band discharge
Mini Cooper S
BMW S63 Valve Springs by SuperTech 1301004 Using Custom Age 625+ headEnhance 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
