What Are Exhaust Manifolds?
Exhaust manifolds are designed to couple each exhaust port of an engine’s cylinder head to a single outlet pipe. Functionally, the steely unit collects ejected waste gasses from the multiple cylinders and ejects them into a single pipe conduit. Viewed from a purely structural viewpoint, the little collector unit is manufactured as a blocky series of aligned ports. Its job is to merge the collected streams of cylinder-burnt gasses, to combine the multiple exhaust outlets into a single channel. Let’s take a closer look. Engine-to-Exhaust System Interface Exhaust manifolds bolt to car engines via heat-resistant gaskets. They’re the compact factory-installed workhorses that convert multiple exhaust outputs into a lone stream so that the unified volume of dirty gas can be expelled down one channel and out through a car’s tailpipe. Unfortunately, that compact profile does not favour free engine respiration. It’s a bit like dropping your head to your chest and trying to breathe freel...