Add headers and a tune. That should shut up the people bitching about back pressure loss.
E92 '08 335Xi 6AT - JB4+MHD, ar design DP's, Race Cats in the mids, Corsa Axleback, VRSF CP w/Tial BOV, VRSF 7" FMIC, BMS DCI, BMS Cowl, H&R Coilovers, Renn Motorsport RS-51's, Alpina TCU Flash, Retrofit Earl's Oil Cooler, Turner Boost Gauge, Fully Coded.
Upcoming: DOCRace Single Turbo
Best 1/4mi: 13.201 @ 106.93 / 2.0 60' / DA=9300ft Bandimere Speedway