The proven winner of IMCA Sprint Car Champion, World of Outlaws, and USAC, the round Sprint muffler meets 95dB levels at 100ft. Ron Shaver is pleased with its performance in testing. Both mufflers are designed to attach directly to your header collector. Recommended by Earl Gaerte, Ron Shaver, and Cosworth Engineering. As a pair, these mufflers are ideally suited for V8 applications up to 450hp.
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