Integrated Engineering Downpipe | B9 A4 · A5 F06 · F12 · F13 M6 4.4L Turbo V8 [S63] 44% increase in flow over

44% increase in flow over stock

This block-off plate is used when removing the rear breather from the factory turbo inlet on all transverse and longitudinal 2

The APR Throttle Booster instantly transforms the way your vehicle feels by customizing how quickly your throttle or accelerator pedal works

This is a complete carrier replacement and not some weak aluminum adapter spacer that requires additional bolts

and bellmouths work together to ram more air into the cylinders

Integrated Engineering Downpipe | B9 A4 · A5 F06 · F12 · F13 M6 4.4L Turbo V8 [S63] 44% increase in flow overThe IE B9 A4 & A5 Catted Downpipe is engineered to completely reduce turbocharger back pressure and increase turbo spool required for the calibrations of a stage 2 ECU tune. The combination of a performance downpipe and ECU tune together unlocks the full performance potential of your stock turbocharger and engine, delivering 97 horsepower over stock. Get ready to experience addictive power gains across the entire RPM range and an aggressive exhaust