To address the problems with the factory manifolds without compromising durability, the stock exhaust catalysts are removed when the Active Autowerke 3-series sports header is installed. Our E46 performance headers are constructed completely from 100% polished 304 stainless steel and the gains produced have been dyno-tested. Be sure to check out our E46 BMW rear exhaust for even more horsepower!
Looking for an easy way to watch the performance numbers of your BMW E46 325I 330I climb? It really is a simple solution! Swap the E46's factory header with integrated cats, known to be highly restrictive, for a BMW E46 performance header that is much more free-flowing.
• Creates optimum flow and eliminates restriction
• Suitable for Naturally Aspirated and Force Induction
• Dyno-tested performance gains
• Bolts up to existing factory exhaust system for a precise fit
• Complete mounting hardware
• Suitable for naturally aspirated and supercharged forced induction applications
• 100% 304 stainless steel construction for long life
• Two year warranty with free tech support
Effortlessly Explore the Best Aftermarket Exhaust Solutions for Your Vehicle.