Hack Engineering Stainless Steel Exhaust Flange Repair Kit – suitable for E46 M3 and E85/E86 Z4 M. The exhaust flanges joining the backbox to the rest of the exhaust system are known to corrode, causing exhaust leaks and eventually a loose backbox.

These split flanges mount to the car without the need to dismantle the exhaust system and will last the lifetime of the vehicle. Supplied complete with stainless steel hardware.

4 flange halves per item, two items required for one vehicle repair.