these downpipes dramatically reduce backpressure and allow your turbos to spool faster for sharper throttle response and immediate gains in horsepower and torque

BMW #11241247175

The returning low pressure fuel from the FPR is sent back into the surge tank keeping it full

- V-Band inlet and outlet make install easy

the vacuum/boost reference line must be installed

M20 Combustion Chamber Upgrade Service 64984S these downpipes dramatically reduce backpressure5150 AutoSport Combustion Chamber Upgrade Service for BMW M20 Engines Please note that price is based on customer providing 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 performance for street or