The CFD-optimized housings are designed for performance—reducing backpressure while maximizing power output

these valves are engineered to withstand the rigorous demands of performance use

The issue some owners have experienced is road debris that impacted the OE belly pan hard enough to crack the oil cooler

SELECTION GUIDE

Corrosion resistant internals make it compatible with all known fuels Capable of extended service life with corrosive fuels

BMW N54 Short Block Assembly Service R50 The CFD-optimized housings are designed5150 AutoSport Short Block Build Service for BMW N54 Engines Please note that price is based on customer providing core. If you need help sourcing a core, please contact our sales team. When your BMW engine needs to be built right the first time, 5150 AutoSports Short Block Assembly Service delivers the precision, consistency, and experience demanded by high performance BMW builds. This service is performed in house by BMW focused engine builders