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When this Camaro's exhaust system was built back in the '80s, we werehappy just to find replacement factory-style pipes so a tight-fittingdual system could be made with aftermarket mufflers. It worked for yearsbut had to be costing power with its 21/4-inch crush-bent pipes andancient crossflow muffler. Now we can install a 21/2-inch mandrel-bentFlowmaster system that should fit just as well but will flow and soundbetter. We can do it ourselves with relatively basic tools.