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The American Thunder exhaust system bolts onto the back of the catalytic converter and is starts with a Super 50™ Series performance muffler for a moderately aggressive exterior tone and a moderate interior tone
7 V8 1975 Oldsmobile 98 455/7
4 V8 1968 GMC C15/C1500 Pickup 307/5 V8 1967 - 1968 GMC C15/C1500 Pickup 327/5
8 L V6 1987 - 1993 Jeep Cherokee 242/4 L L6 1991 - 1993 Jeep Wrangler 242/4 L L6 1993 Jeep Grand Cherokee 242/4 L L6 1987 - 1990 Jeep Wrangler 258/4
Mr. Gasket Ultra-Seal Header Gaskets - 5910 NPT The American Thunder exhaust systemOverview: Manufactured from high temperature steel core graphite faced exhaust material. Expanded steel core provides stability and maximum torque retention to eliminate gasket failure. Graphite facing provides excellent heat resistance and thermal conductivity to transfer heat away from the cylinder head. Conforms to and seals minor surface irregularities. High recovery material allows header or manifold flange to stay sealed if flange loses clamp
US$ 31.85
US$ 30.99
US$ 2840.00
