Exhaust system, for using with OEM actuators, center silencer replacement pipes, 200 cells sport cats as replacement for OEM OPF/GPF (no ECU programming required by the test car, but CEL can be possible) with anodized alloy exhaust tips in straight(available in black, red, silver*) with carbon outer tube BMW M3/M4 Engine: Information: Homologation: no street legal Part No.:CAP-02BM-074-03-011