5150 AutoSport Pro-Xtreme Valve Springs for BMW M40 / M42 / M44 Engines

5” setup delivers roughly 50% more mass for increased thermal capacity—keeping temperatures in check under extended abuse—while offering higher torque handling and smoother engagement

BM-S50-1>-65602S

Provides a Power Increase of 15-20 HP for Stock Vehicles and Over 25 HP for Modified Cars

Tighten the nuts by hand

BMW M44 Main Bolt 11112244286 S54 Rod Bearings 5150 AutoSport Pro-Xtreme Valve SpringsThe BMW M44 Main Bolt 11112244286 is a Genuine BMW crankshaft main bearing bolt designed to secure the main bearing caps to the engine block. This bolt plays a critical role in maintaining proper crankshaft alignment, bearing crush, and bottom end stability in BMW M44 engines. Cross Reference Part Numbers 11112244286 11 11 2 244 286 11 11 2 244 286 11. 11. 2. 244. 286 BMW M44 Applications: 3 Series 1996 1999 E36 318i 318is Z Series 1996 1999 E36 7 Z3