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By oversizing the filter
8 TFSI 02/15 – On AUDI A1 Sportback (8XA
Audi 8V RS3 Sedan from 2017
5mm pipework and fits from the front pipe / catalyst backwards (Cat-back system) these exhausts replace the front box
such as a blocked off inlet passage directly in front of the airbox along with abrupt edges leading into the air inlet channel
VRSF Stainless Steel Race 3.5" Decat - F10, F11, F15, F07 535i F12, F13 640i E70, E71 X5, X6 Fins By oversizing the filterWe 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