Contains no ethylene glycol

these rods are perfectly suited for BMW N55B30 and S55B30 engines with a rod length of 144

and performance components—all while keeping your engine safe and reliable

85 A/R | 0

S63 Valve Guides 11241307140 Contains no ethylene glycolOur HD bronze valve guides for the BMW S63 engine (found in various M5 models) are engineered for high performance, high boost applications where OEM materials reach their limits. These replace the factory BMW valve guides in the cylinder head (intake and exhaust guide assemblies). Built to withstand extreme heat, increased valve spring pressures, and sustained high RPM operation, these guides deliver exceptional stability and durability under