MAD BMW G8x M3 M4 Downpipes S58 5 series for V8's such as the

for V8's such as the S63 please send us an email and we will work with you to get you a set of 8

VRSF HD Intercooler Core

Stage 3 Kit includes

5″ Race Intercooler Kit to get the most out of your N54 or N55

Our bolt on end tanks utilize the OEM intercooler piping

MAD BMW G8x M3 M4 Downpipes S58 5 series for V8's such as theUpgrade from the stock S58 downpipes to the MAD S58 catless downpipes for maximum airflow, power, and sound! Upgrade to the MAD BMW S58 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 S58 with stock turbos, even more on cars with