For owners of Ford’s amazing 2012 Mustang Boss 302, the puzzle of finding the ideal performance exhaust has just been solved. Flowmaster now offers their new American Thunder Cat-back exhaust (part number 817553), engineered specifically for the Boss 302. Measuring a full 3.00” diameter throughout, this all-409S stainless steel true Cat-back system features Flowmaster's patented Scavenger X pipe, and incorporates flanges to retain the OE side-exit pipes, as well as custom-engineered 60 Series Delta Flow mufflers for an aggressive, powerful exterior sound, and a moderate interior tone, with very little resonance
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