Upgrade from the stock S55 intake pipe kit to the MAD S55 inlets for maximum airflow, power, and sound! Our inlets will improve throttle response while retaining the stock cold air ducting and bottom heat shielding. Improve your engines sound and hear the Whoosh "bov Sound" everyone has come to love. Expect up to a 10Whp+ increase on a tuned BMW S55 with stock turbos, and up to 15 whp+ on cars with upgraded turbos. Features: Huge sound improvement Improves Throttle Response Lifetime warranty on defects and fitment 90 day return period All orders ship in 1-2 business days Spot on fitment Fitment: 2014+ BMW M3 & M4 (F Chassis) 2018+ M2 Competition (F Chassis) Note: We recommend using our inlets kit with the stock intakes only. We do not guarantee fitment of our inlets with any aftermarket intake.