MAD N54 Downpipes - E9X/E8X

Upgrade from the stock N54 downpipes to the MAD N54 catless downpipes for maximum airflow, power, and sound! Upgrade to the MAD BMW N54 downpipes to eliminate the back pressure caused by your stock catalytic converters. By upgrading to our downpipes, your turbos 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 N54 with stock turbos, even more on cars with upgraded turbos. Features: Compatible with right-hand drive and left-hand drive vehicles Smooth bends for maximum airflow without any drone Up to 30HP increase on the stock turbos, even more on upgraded turbos Gaskets and mounting included Lifetime warranty on defects and fitment The suggested retail price is $279 Fitment: 2011-2012 BMW 1M 2008-2010 BMW 135i 2007-2010 BMW 335i 2011-2013 BMW 335is