BMW S55 F8X M3/M4 Norcal Dynamics Catless Downpipes 5 Series Make sure the application area

Make sure the application area is clean and clear of residue

sporty finish than a basic frame

-Wood Trim

responsiveness

Our mirror caps and covers are direct replacements

BMW S55 F8X M3/M4 Norcal Dynamics Catless Downpipes 5 Series Make sure the application areaNote: 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