N55 Catted Downpipe - F3X - 4" EWG

HIGHLIGHTS • Gain up to 23whp/29wtq• Faster Turbo Spool• Improved Exhaust Sound • Upgrade to Stage 2+ Tuning • SS304 Stainless Steel    PROFILE An F30 N55 Downpipe is regarded as the best hardware upgrade to get the most power from your N55 powered F3X BMW.  The ARM N55 Catted Downpipe offers the same benefits as the catless option with added benefit of reduced exhaust odor. The stock N55 downpipe comes from the factory with a catalyst that severely restricts exhaust flow.  Upgrading your downpipe unlocks power, improves turbo spool, allows you to run stage 2+ tuning, and increases the exhaust note of your N55 powered BMW all at once.  An N55 downpipe upgrade is the first hardware upgrade every N55 owner should invest in.    ENHANCE THE SOUND OF YOUR N55 The M235i in the video below is only equipped with the ARM N55 4" Downpipe, it is otherwise on a 100% stock exhaust.  The car has never even been flashed, it is on the original DME programming from BMW.  The ARM N55 Catted Dow