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At first glance, GTR's Ricardo Topete appears to be positioning a Coyote-powered Mustang's factory H-pipe. However, when you look more closely, you'll see both tubes include the unique kicker pipes of a Boss 302's OEM exhaust. FRPP now offers the Boss 'Stang's side-exit exhaust system for standard Mustang GTs (PN M-5220-MB; $795). We bolted a pipe and FRPP's '11-'13 axle-back exhaust kit (PN M-5230-MGTLA; $699.95) on Salvador Lua's '12 Pony, and gave the 'Stang a few runs on the Dynojet chassis dyno to see what, if any, difference it makes.