Borla exhaust system.

Since mid-1964, Mustang has always been about muscle, looks, and loads of customization options. For soundaholic Mustang GT drivers who won't settle for anything less than unbridled performance with a pure, aggressive pony car growl, Borla® offers a Cat-Back™ (PN140318) and Axle-Back (PN11777) system, each featuring Borla® S-Type mufflers. Responding to the high-output exhaust needs of the supercharged 2010 Shelby GT500, Borla® engineers developed a specially-tuned Multicore Cat-Back™ system (PN140320) which includes an X-Pipe. Borla®'s patented high-velocity Multicore design distributes exhaust gases through multiple straight-through perforated cores. A race-tested innovation, Multicore technology is also utilized in Borla®'s elite XR-1 mufflers used by winning teams in NHRA, Baja 1000 and many other racing venues, and has been proven to actually outflow a straight pipe. Combined with distinctive motorsport styling, easy bolt-on installation and enhanced fuel economy, the world's most winning exhaust continues to lead the industry it founded over 40 years.

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