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Ships within 48 hours · Estimated delivery Aug 16 - Aug 21
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
Carbon build-up is no joke
The end result is the ATM FMIC's ability to remove more temperature
For 2015+ models Remove plastic connector from the back of the airbox (see 1st pic below)
UPGRADE YOUR 135i/335i FMIC
BMW M57 335D/X5D Swirl Flap Delete Kit DIM-12-12-12 Your choice of a high-flowDESCRIPTION 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
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