The Active Autowerke heads for E46 325 and 330 models with M54 engines are constructed of 100% 304 Stainless Steel. By eliminating the factory catalytic converters, these performance exhaust headers promote flow and eliminate head buildup for maximum horsepower.
This kit bolts onto the existing factory exhaust system for direct fitment, and is suitable for both naturally aspirated and supercharged applications.
Headers come as a complete kit, including necessary installation hardware. Intended for off-road and race applications only.