The exhaust manifold of your BMW is meant to collect the exhaust gases from the engine’s cylinders into one pipe, the collector. They’re known by a collection of names: headers, exhaust manifolds, and tubular manifolds. This component is essential to the proper functioning of your vehicle, as it is directly associated with the engine ignition process. This is where the waste gases are funneled into after fuel has been burned in the engine and later sent to the tailpipe.

Some common signs of exhaust manifold issues in your BMW could be a noisy engine…