N20 Downpipe - F30 320/328i N54 or open the valves for

or open the valves for maximum sound

OE Replacement for F8x center bumper grille

Fitment is for 2019+ X6

make the exhaust burbles more audible (even on OEM programming)

The bumper stays on during install

N20 Downpipe - F30 320/328i N54 or open the valves forHIGHLIGHTS Gain up to 17whp 25wtq Faster Turbo Spool Improved Exhaust Note Upgrade to Stage 2+ Tuning SS304 Stainless Steel PROFILE The ARM Motorsports N20 Downpipe is the best hardware upgrade to get the most power from your 320i or 328i. The N20 has a stock downpipe with a catalyst that drastically restricts exhaust flow. This limits not only the amount of power N20 can make on the stock tune, but also prevents upgrading to a stage 2 tune due to