S55 M3 M4 M2CS 3" Catless Downpipes

Gain more horsepower and torque with our Roundel Werk S55 Catless Downpipes.

With increased exhaust flow, this is a must have modification that you will truly feel!

This kit includes new mounting hardware.  We do recommend replacing gaskets to reduce the risk of any leaks.

• More power and torque through entire rev range
• Faster turbo spooling
• 304 Brushed Stainless Steel
• TIG Welded
• Fits F80/F82/F83 BMW M3 & M4 and F82 BMW M2 Competition / CS
  
• Mandrel bent tubing for increased flow
• S55 Engine fitment only.  Will not standard M2
  

Please note removal of primary catalytic converters will trigger a CEL without a DME flash.

For off-road use only.  Includes 1 Year Warranty.

Fitment Applications: