Borla 140135 S-Type Cat-Back Exhaust for 2005-2009 Ford Mustang GT/GT500 RWD

Vehicle Fitment

• 2005-2009 Ford Mustang GT (Coupe/Convertible, 4.6L V8, RWD, Manual/Automatic)
• 2005-2009 Ford Mustang Shelby GT500 (Coupe/Convertible, 5.4L Supercharged V8, RWD, Manual/Automatic)

Features

• Borla S-Type performance sound profile with aggressive tone and refined character
• Mandrel-bent stainless steel tubing preserves consistent internal diameter for improved exhaust flow
• Straight-through muffler design reduces backpressure and enhances throttle response
• Premium T-304 austenitic stainless steel construction for superior corrosion resistance
• Polished 4.0" round rolled angle-cut exhaust tips for a bold rear appearance
• Split rear exit layout enhances exhaust flow distribution and styling
• Direct bolt-on installation using factory hanger locations
• Designed for long-lasting durability under daily and spirited driving

Specifications

• Exhaust Type: Cat-Back system
• Material: T-304 stainless steel
• Main Pipe Diameter: 2.50 in
• Tip Diameter: 4.0 in
• Tip Style: Polished round rolled angle-cut
• Exit Location: Split rear exit
• Drivetrain Compatibility: Rear-Wheel Drive (RWD)
• Transmission Compatibility: Manual and Automatic

Included Components

• 1x Front pipe assembly
• 1x Intermediate pipe assembly
• 2x Muffler assemblies
• 2x Polished round rolled angle-cut exhaust tips
• Required clamps and mounting hardware

Product Description

The Borla 140135 S-Type Cat-Back Exhaust System is engineered for 2005-2009 Ford Mustang GT and Shelby GT500 models equipped with either the 4.6L V8 or the 5.4L supercharged V8 and rear-wheel-drive configuration. This premium performance exhaust system replaces the restrictive factory setup with high-flow mandrel-bent stainless steel tubing and a straight-through muffler to improve exhaust efficiency, throttle response, and overall engine performance while producing Borla's signature S-Type exhaust tone.

Constructed from aerospace-grade T-304 stainless steel and featuring polished 4-inch round rolled angle-cut tips with a split rear exit, the 140135 enhances both sound and rear visual presence. The direct bolt-on installation uses factory hanger locations for a straightforward fit. Designed for enthusiasts seeking increased airflow, richer sound, and long-lasting durability, this Cat-Back exhaust is ideal for Ford Mustang owners who want a balanced performance upgrade without excessive drone.