Enhanced Smoothness: Whether you're driving a daily commuter or a high-performance racer

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Seat Locator: SEAT-BMS54

Designed for BMW B58 engines with 148 mm rods for a perfect OEM replacement fit

5150 AutoSport Head Gasket & Head Stud Kit, BMW M42 / M44 E92 M3 Enhanced Smoothness: Whether you're drivingMLS Head Gasket: This Cometic MLS Head Gasket is specifically engineered to replace BMW part # 11121721546, 11121721547, 11121721550, 11121721551 for the M40B16, M40B18, M42 B18, or M44 B19 engine. The M40 and M42 factory head gasket specifications are 84mm Bore with a thickness of 0. 070 inches. The M43 and M44 factory head gasket specifications are 85mm Bore with a thickness of 0. 070 inches. Comprised of multiple layers of stainless steel, MLS