The S.O.S. system is for the person who wants a subdued, but custom look, with all the benefits of a Flowmaster exhaust system. These systems feature mandrel bent 16 gauge aluminized steel tubing, either weld-on or flanged inlet pipe/pipes, specially tuned muffler, clamps, hangers and stainless steel exhaust tip exiting in the factory location out the side behind the rear tire of the vehicle