BMW S55 F8X M3/M4 Norcal Dynamics Catless Downpipes

Note: Track use only includes lifetime warranty  Upgrade from the stock S55 downpipes to the Norcal Dynamics S55 catless downpipes for maximum airflow, power, and sound! Our BMW S55 downpipes eliminate the backpressure caused by your stock catalytic converters. By upgrading to our downpipes, your turbos can now spool faster and achieve maximum power. Plus, your car will have a more aggressive and improved sound. Expect up to a 30HP increase on a tuned BMW S55 with stock turbos, even more on cars with upgraded turbos. The flex pipe section helps reduce stress and unwanted vibrations caused by heat and engine movement. Features: Compatible with right-hand drive and left-hand drive vehicles Smooth bends for maximum airflow without any drone Up to 30HP increase on stock turbos, even more on upgraded turbos Perfect fitment Flex section Fitment: 2018+ BMW M2 Competition 2014+ BMW M3 2015+ BMW M4