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SIDE SKIRTS FOR AUDI RS4 B9
After extensive flow modelling
This maximizes efficiency and improves driveability and torque throughout the rev range – turbocharger spool dropped nearly 500 RPMs
0TDI – Including GT/GTD (VWR31G5GT)
OE 07 11 9 963 151 S1
VRSF Brushed Race 4" Decat - F10, F11, F15, F07 535i F12, F13 640i E70, E71 X5, X6 m235i SIDE SKIRTS FOR AUDI RS4We are proud to introduce our VRSF race downpipe for your BMW 535i & 640i with the N55 engine. This direct bolt on high flow downpipe is THE best bang for the buck mod available. By eliminating the restrictive catalytic converter in the factory downpipe, back pressure is reduced significantly which results in faster spool, an increase in power & a more aggressive exhaust note. Our race downpipes feature a full 3. 5 stainless steel design and are