SLP’s Mustang cat-backs have always been the best performing exhaust systems in the business. Now they’re the most versatile, too! Using groundbreaking modular technology first seen on our Mustang X-pipes, we’ve developed a line of systems that can be quickly reconfigured to fit changing performance, noise level, and sound quality requirements. Simply loosen a few band clamps, swap muffler types, retighten, and you’re done. No other exhaust offers this level of performance and adaptability!

Along with the included mufflers, the Mustang PowerFlo™ system is compatible with our original Loud Mouth™ resonators (#31062) and our all new, bullet-type Loud Mouth II™ race mufflers (#31064). Buy all three for complete control over your Mustang’s sound and performance characteristics.

NOTES: Includes PowerFlo™ mufflers. Loud Mouth™ resonators and Loud Mouth II™ race mufflers sold separately.

FEATURES:
Includes straight-through type PowerFlo™ mufflers for superior performance; minimal resonance; and a deep, rich tone
Employs SLP’s exclusive modular technology, making it possible to switch between muffler and resonator types in a matter of minutes
Engineered and built to OEM standards to ensure proper fit
Constructed entirely from mandrel-bent stainless steel
Features show quality polished mufflers and 3.5" double-wall tips with electromarked SLP logo
For 1999-2004 GT and Mach I models