Since 1981, Active Autowerke has been known as the BMW innovators when it comes to BMW performance. All products come with a 2 Year Warranty.
It’s simple, really…. Swap the factor’s highly restrictive headers with integrated cats for free flowing performance header and watch the performance numbers climb. To see what we mean, just take a closer look at the factory manifolds: – The exhaust catalysts are situated right against the cylinder head, causing extreme heat build up. – Cylinders 1-3 and 4-6 each channel through to a single restrictive pipe – These characteristics create extreme heat thanks to an inherently bottleneck design Active Autowerke’s Performance E46 325/330 Header system is designed to eliminate this problem without compromising durability.
Constructed from 100% Polished 304 stainless steel, when installing this header the factory exhaust catalysts are removed in the process, making this solution recommended for off-road race applications. Designed and Engineered for Off Road & Track use.