Maintains full use of Valvetronic and Dual VANOS for great throttle response and wide power band

Stainless steel turbine housings (1050°C rated)

35 spline x 10 teeth hub

BMW S38B38 Applications:

B46 Combustion Chamber Upgrade Service S85 Rod Bearings Maintains full use of ValvetronicPlease note that pricing is based on the customer providing a core. If you need assistance sourcing a core, contact our sales team. For enthusiasts and builders pushing the limits of BMWs B46 engine, optimizing the combustion chamber is a critical step toward maximizing performance and reliability. The 5150 Combustion Chamber Upgrade Service reshapes the combustion chambers using state of the art 5 axis CNC equipment for improved flow, consistency,