Borla 11806 ATAK Axle-Back Exhaust System for 2005-2009 Ford Mustang GT and 2007-2009 Shelby GT500

This 2.5" diameter BORLA® Axle-Back system features a single 4" round bright chrome on T-304 stainless steel tip on each muffler assembly. It delivers the aggressive ATAK® sound with no drone inside the vehicle. This system will have a very aggressive sound on Shelby GT 500 vehicles. BORLA® Cat-Back™ & Axle-Back exhaust systems feature patented straight-through and multi-core technology to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA® Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 austenitic stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer numerical control (CNC) manufacturing ensures an accurate fit. Best of all, BORLA® stands behind every system with a Million-Mile Warranty. Just what you'd expect from the world's most experienced (and most winning) exhaust brand. ATAK Axle-Back Exhaust System 2005-2009 Ford Mustang GT 4.6L V8/ 2007-2009 Ford Mustang Shelby GT500 5.4L V8 Supercharged Automatic/ Manual Transmission Rear Wheel Drive 2 Door Coupe/ Convertible. Million Mile Warranty 2005-2009 Ford Mustang GT 4.6L V8/ 2007-2009 Mustang Shelby GT500 5.4L V8 Supercharged Automatic/ Manual Transmission Coupe/ Convertible.

• This system will have a very aggressive sound on Shelby GT 500 vehicles

Upgrade your Ford Mustang with the Borla 11806 ATAK Axle-Back Exhaust System, engineered to deliver an aggressive, performance-focused exhaust note without interior drone. Designed for 2005-2009 Ford Mustang GT models with the 4.6L V8 and 2007-2009 Ford Mustang Shelby GT500 models with the supercharged 5.4L V8, this rear-section exhaust system is compatible with automatic and manual transmissions, as well as coupe and convertible body styles.

The ATAK system uses Borla's patented straight-through and multi-core technology to improve exhaust flow, helping unleash hidden horsepower while enhancing throttle response, driving enjoyment, and potential fuel economy. Each muffler assembly includes a bright chrome T-304 stainless steel exhaust tip, providing a durable, polished finish that complements the Mustang's performance styling. The Shelby GT500 application produces a particularly aggressive sound character.

Built from premium T-304 austenitic stainless steel, the Borla 11806 is designed to provide excellent corrosion resistance and long-term durability. Ultra-smooth mandrel bends help maintain consistent exhaust velocity, while precision CNC manufacturing supports accurate fitment and straightforward installation. Borla backs this system with its Million-Mile Warranty, reflecting the brand's commitment to quality and dependable performance.

Brief Description

Aggressive-sounding Borla ATAK axle-back exhaust system for select 2005-2009 Ford Mustang GT and 2007-2009 Shelby GT500 vehicles.

Key Product Specifications & Technical Data

• Brand: Borla
• Part Number: 11806
• Product Type: ATAK axle-back exhaust system
• Application: Rear exhaust section
• Exhaust Tip: Bright chrome T-304 stainless steel
• Exhaust Technology: Straight-through and multi-core design
• Material: T-304 austenitic stainless steel
• Warranty: Borla Million-Mile Warranty

What's Included in the Box

• Borla ATAK axle-back exhaust system
• Muffler assemblies with chrome stainless steel tips
• Installation hardware as supplied by the manufacturer

Fitment

Fits 2005-2009 Ford Mustang GT models equipped with the 4.6L V8 and 2007-2009 Ford Mustang Shelby GT500 models equipped with the supercharged 5.4L V8. Compatible with automatic or manual transmissions and coupe or convertible body styles. Professional installation is recommended to confirm vehicle-specific compatibility and ensure proper alignment.

Features:

• Aggressive ATAK Sound: Produces Borla's aggressive performance exhaust tone while minimizing interior drone.
• T-304 Stainless Steel Construction: Uses premium austenitic stainless steel for improved corrosion resistance, strength, and durability.
• Straight-Through and Multi-Core Technology: Promotes efficient exhaust flow to help improve power potential, throttle response, and driving excitement.
• Precision-Fit Manufacturing: Ultra-smooth mandrel bends and CNC manufacturing support consistent flow and accurate vehicle fitment.

Fitments:
2005 Ford Mustang GT
2006 Ford Mustang GT
2007 Ford Mustang GT
2007 Ford Mustang Shelby GT500
2008 Ford Mustang GT
2008 Ford Mustang Shelby GT500
2009 Ford Mustang GT
2009 Ford Mustang Shelby GT500

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1