MAD-002
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.
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