N55 DOWNPIPE - F SERIES - 4" EWG Billet caps For those of you looking

For those of you looking to retain the OEM Diverter Valves check out our N54 Charge Pipe with OEM DV's

The ARM 7” FMIC measures 20 x 7 x 5

not to be huge

or a straight 3" adapter to connect to your upgraded cat-back exhaust

Combined with our Ultra-Dense fin packs

N55 DOWNPIPE - F SERIES - 4" EWG Billet caps For those of you lookingGain 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 F Series BMW. 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