Description
The 2005-2009 Mustang 4.0L V6 SS (Rear Section) has a distinct performance identity, and this Borla setup is designed to make the exhaust note better match that character. As a axle-back exhaust system, it changes the rear muffler and outlet section, giving the car a more purposeful voice and appearance without replacing as much of the factory exhaust.
It makes particular sense for an owner who wants a meaningful change at the rear of the car while keeping more of the original exhaust system in place than a full cat-back replacement would. In practice, this product is best suited to enthusiasts who want a stronger muscle-car soundtrack and a more assertive rear-end presence for spirited street use, meets, and occasional track work.
Application Focus
For this specific 2005-2009 Mustang 4.0L V6 SS (Rear Section) listing, the configuration should be chosen according to the exact vehicle equipment and the variant selections shown below; similar-looking Borla systems can differ in routing, valves, outlets, or tip treatment.
About Borla
Borla has specialized in stainless-steel performance exhaust systems for decades, building its reputation around application-specific engineering, recognizable sound tuning, and durable construction. That background makes this product a natural choice for a build where exhaust tone and fitment matter as much as simply replacing factory hardware.
Fitment note: Confirm model year, engine, trim, factory exhaust equipment, and the selected Borla part number before ordering.