A typical exhaust system consists of an exhaust manifold, resonator, muffler and tail pipe all connected serially to a combustion car engine to flush out exhausts gasses. The gasses then move into the hollow muffler chambers of various sizes to eliminate most of the noise they carry from the engine. https://partsavatar.ca/shop-exhaust-muffler-silencer-tail-pipes-resonator-manifold-tips-cat-back-exhaust-systems?av=In+Stock&pg=1&sb=relevance