Racing Beat has been manufacturing replacement muffler canisters for rotary powered vehicles for over 25 years. Ordinary replacement mufflers do not stand a chance against the extreme temperatures and pounding exhaust gas pulsation generated by the rotary engine. Many of these replacement mufflers will quickly burn up the packing material and self-destruct under these harsh conditions. This muffler is a large diameter high-flow muffler designed for street ported engines as well as the stock 1981-1982 RX-7 chassis. It consists of two 1.75-inch tubes that collect into one 2.375-inch tube. It is slightly louder than our other Power Pulse Mufflers. This Power Pulse Main Muffler assembly interchanges exactly with the stock RX-7 muffler on the 1981-82 chassis years. The main body of the muffler measures 8 inches in diameter and 18 inches in length. The heavy-duty construction, both internally and externally, ensures a long life. Gaskets are not included, but are available separately.
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