Incredibly powerful yet relatively compact in size

and valve float for optimal power delivery and engine longevity

Unlike those kits

and compatibility with a wide range of ECUs and devices

The 201-4302 ARP2000 head studs from ARP are custom-designed for the iron block U

BMW M30 Cut Ring Head Gasket by Athena-SCE Bore Size - Thickness:95.6 mm - 0.079" Incredibly powerful yet relatively compactThis Athena Cut Ring Head Gasket is specifically engineered to replace BMW part # 11121730226 and 11121730227 for the M30B30, M30B34, and M30B35. 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