VRSF Racing Downpipes N54 2007 – 2011 BMW 335Xi E90/E92We are proud to introduce our VRSF 3 race downpipes for your 2007 to 2011 N54 E90 & E92 335xi. These 3 downpipes are THE best bang for the buck mod available, with gains ranging from 25 30hp when tuned. By eliminating the restrictive catalytic converters in the factory downpipes, back pressure is reduced significantly which results in faster spool, an increase in power & a more aggressive exhaust note. Our 3 downpipes are hand crafted from SS304