WSTN BMW S55 M3/M4/M2 Competition High Flow Catted Downpipes (F87/F80/F82/F83)

WSTN Performance S55 Catted Downpipes replace factory units with a high-flow, stainless steel system for better performance and drivability.

• The description claims the downpipes deliver faster turbo response and improved efficiency.
• The description claims the downpipes reduce engine bay temperatures and maintain consistent performance under hard driving.
• The description claims the downpipes have high-flow catalytic converters that reduce backpressure while maintaining emissions and smell control.