Whether you are building a track-dominating machine or a street monster

With the design it is capable of producing well beyond 1000hp for anyone looking to really push the limits of this platform

and automated testing (including burn-in)

Precision Fit: Custom-designed specifically for BMW / Toyota B58 engines

S38 Combustion Chamber Upgrade Service G21 Whether you are building a5150 AutoSport Combustion Chamber Upgrade Service for BMW S38 Engines Please note that price is based on customer providing disassembled, clean core. If you need help sourcing a core, please contact our sales team. Our CNC Cylinder Head Combustion Chamber Service is a precision machining process where the combustion chambers of an engine's cylinder head are reshaped and refined using Computer Numerical Control (CNC) technology, optimizing engine