MAD N20 4" Downpipe W/ Bracket BMW 228 328 428 528 E91 LCI the MAD Resonator Delete Kit

the MAD Resonator Delete Kit strikes a perfect balance between aggressive sound and everyday usability

you get only quality products with great fitment

  If you need help beyond that just give us a shout and we will get you fixed up

Works on all BMW G22/G82

MAD N20 4" Downpipe W/ Bracket BMW 228 328 428 528 E91 LCI the MAD Resonator Delete KitUpgrade from the stock N20 downpipe to the MAD N20 4" catless downpipe for maximum airflow, power, and sound! Upgrade to the MAD BMW N20 4" downpipe to eliminate the backpressure caused by your stock catalytic converters. By upgrading to our downpipe, your turbo can now spool faster and achieve maximum power. As a bonus, your car will sound a lot nicer as well. Expect up to a 30HP increase on a tuned BMW N20with stock turbo, even more on cars with