Borla 11890 ATAK Axle-Back Exhaust for 2015-23 Ford Mustang EcoBoost/3.7L

Vehicle Fitment

• 2015-2023 Ford Mustang (EcoBoost 2.3L I4 / 3.7L V6, RWD, Auto/Manual) - Coupe only

Features

• ATAK straight-through muffler design for aggressive high-performance tone
• Premium T-304 stainless steel construction for strength and corrosion resistance
• 2.25" mandrel-bent tubing to optimize exhaust flow and reduce backpressure
• Single split rear exit with 4" black chrome rolled angle-cut tip
• Direct bolt-on installation with included hardware - no modifications needed
• Delivers maximum sound output with minimal interior drone at highway speeds
• Enhanced horsepower and torque potential through improved exhaust flow
• Backed by Borla's Million-Mile Warranty for long-term performance

Specifications

• Part Number: 11890
• System Type: ATAK Axle-Back Exhaust
• Pipe Diameter: 2.25"
• Tip Diameter: 4" black chrome
• Exit Style: Single split rear exit
• Material: T-304 stainless steel
• Sound Level: ATAK (most aggressive Borla tone)
• Fitment: Rear Wheel Drive (RWD)
• Body: Coupe only; **does not fit convertible or Active Valve Exhaust systems**

Included Components

• 1x Borla ATAK Axle-Back Exhaust assembly
• 1x Mounting hardware kit

Product Description

The Borla 11890 ATAK Axle-Back Exhaust System is a high-performance upgrade engineered for the 2015-2023 Ford Mustang with EcoBoost 2.3L or 3.7L engines in rear-wheel-drive coupe applications. Featuring Borla's ATAK design, this exhaust delivers the most aggressive exhaust tone in the Borla lineup while maintaining strong performance gains through improved exhaust flow and reduced backpressure.

Constructed from premium T-304 stainless steel with mandrel-bent 2.25" tubing and a black chrome rolled angle-cut 4" tip, the 11890 combines style with substance. The ATAK tone is ideal for enthusiasts seeking a bold, track-ready sound that still performs on the street. Installation is straightforward with direct bolt-on fitment and included hardware. This system fits coupe models only and is not compatible with convertible body styles or factory Active Valve Exhaust configurations, making it a perfect choice for hardtop Mustang owners who want maximum sound and performance.