Supersprint Front Pipes replaces cats BMW E90/E92 M3
Supersprint Front Pipes replaces cats BMW E90/E92 M3 Front pipes for M3 E9x (decat pipes or catless front pipes) These components replace the OEM front catalytic converters and are the key factor in the performance increase of this exhaust system. All the necessary O2 sensor bungs are included. The removal of the stock cats will result in the Check Engine Light turning on, this issue can be addresse through ECU remap or with the correct type of sensor cheaters / emulators / microcats. More info on request.