Nitrous utilization mandates expertise

Proven in both street and track conditions

so its output is directly proportional to the motor speed

Ferrea valve springs feature increased spring pressure

BMW S63 Cut Ring Head Gasket Set by Athena-SCE Bore Size - Thickness:90.5 mm - 0.047" Nitrous utilization mandates expertiseDesigned specifically for the BMW S63 V8 engine to replace BMW part numbers 11127567764 and 11127567765 of the F10 F11 F12 F13 F14 F15 F16 F01 F02 chassis. *** Will NOT work on F90 M5 S63 *** Sold as a set Includes Bank 1 and Bank 2 Gaskets Factory OEM and 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