ensuring secure fastening under high pressure and extreme loads

such as those found Radium Engineering fuel rails

Engine block and head surfaces must be clean and properly prepared for the rings to seat correctly

The Mishimoto 335i/335xi/135i radiator is precision engineered for flawless drop-in fitment while providing a 35-percent increase in coolant capacity

Drain Petcock Valve

BMW B58 Gen1 Cut Ring Head Gasket by Athena-SCE Bore Size - Thickness:84.5 mm - 0.040" ensuring secure fastening under highThis B58 Gen 1 Head Gasket is specifically engineered to replace OEM part # 11128654268 and # 11128654269 Factory OEM & MLS head gaskets are only engineered to handle a limited amount of cylinder pressures before they start to leak, causing a range of issues, including engine overheating, loss of power, misfires, and in severe cases, catastrophic engine failure. Athena SCE Cut Ring Head Gaskets are uniquely designed to handle increased cylinder