Red Hots just may be the best muffler value on the market. Their classic slip-fit design features long-lasting, high-heat, thick Cerama-Glass packing wrapped around a power louver baffle. Backpressure is decreased to increase flow and boost power. In a choice of 2", 2.25", or 2.5" inlet/outlet diameter, Red Hots have a 3.5" diameter case and rich red finish with a powerful sound to match. The muffler body is 18" long with a 24" overall length. 1/pkg.