BMW M57 335D/X5D Swirl Flap Delete Kit DIM-12-12-12 Polished Stainless

Polished Stainless

Carbon build-up is no joke

For 2015+ models Remove plastic connector from the back of the airbox (see 1st pic below)

Your choice of a high-flow 200 cell catalytic converter for street use or a straight-piped resonated system for race-only/off-road use

UPGRADE YOUR 135i/335i FMIC

BMW M57 335D/X5D Swirl Flap Delete Kit DIM-12-12-12 Polished StainlessDESCRIPTION A QUALITY SWIRL FLAP DELETE KIT THAT DOESN'T LEAK With a multitude of options for swirl flap blanking kits on the market for the M57, many have found the hard way that the majority leak boost, are poor quality and or have an incorrectly designed o ring. ATM provides a quality solution with a 6061 aluminum body, large viton o ring, and our own design to our specs. Whether your objective is to eliminate the factory leaking swirl flaps or