Supertech valve spring kits feature high-quality springs made from premium materials

2016-2017     F26     X4 M40i

allowing for precise management of wire stress levels to remain well within defined fatigue limits

Upgrade your BMW S63 engine—found in the F90 M5

BMW N20 / N26 Cut Ring Head Gasket by Athena-SCE 325ix Supertech valve spring kits featureThis Athena Cut Ring Head Gasket is specifically engineered to replace BMW part 11128676519, 11128676514, and 11127620698 for the BMW N20 and N26 engines. 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