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The exhaust can be tackled by buying those quiet A-Body V8 manifolds or going the easy route like we did we did-headers. We chose Hedman Hedders with a 1 5/8-inch tube into a 3-inch collector. The Hedmans are coated inside and out, and for performance you can't beat a good set of headers: Hedman also sent us a crossover tube, which helps performance through a scavenging effect. Regardless, the six's skimpy exhaust wasn't going to cut it.