Supersprint Section 1 Straight Pipe - E46 M3 & Z4M

This Supersprint section 1 exhaust section eliminates the factory front resonator, increasing the exhaust rasp and maximizing engine performance. These 304 stainless-steel straight pipes have threaded bungs to accommodate the factory rear oxygen sensors and exhaust gas temperature sensor. 

Replaces BMW front resonator section part # 18107832909 (18-10-7-832-909) on US vehicles. Euro-spec vehicles have a catalytic converter in this location.