This high-performance head stud kit is designed to replace the factory head bolts BMW# 11127838831 and ensure your engine can withstand the extreme conditions of high-performance driving
1998-2000 E36/E37/E38 Z3M
Robust Spring Seat Locators
Compatible with new or used antifreeze (including those with DEX-COOL and long-life versions) to improve the heat transfer of ethylene and propylene glycol systems
The redesigned ESS MSS52 engine control software is perfectly calibrated for the supercharged engine providing optimum ignition timing under all conditions
CAT Cams Camshaft Set, BMW M50 M52 S50 S52 S14B25 This high-performance head stud kitPlease note: All camshafts must be installed by a professional engine builder, using the provided camshaft specification sheet. The builder is responsible for verifying piston to valve clearance and setting engine timing according to the cam card specifications, not the factory settings. For US Engines with Single VANOS CAT Cams Camshaft Kits for BMW M50 M52 S50 S52 Engines Fine Tuned Performance for Every Build The BMW M50, M52, S50, and S52 engines,