-10%
Borla 05-09 Mustang 4.0L V6 AT/MT RWD 2dr SS Exhaust (rear section only)-Borla-BOR11751
Borla 05-09 Mustang 4.0L V6 AT/MT RWD 2dr SS Exhaust (rear section only)-Borla-BOR11751
Borla 05-09 Mustang 4.0L V6 AT/MT RWD 2dr SS Exhaust (rear section only)-Borla-BOR11751
Click to zoom in

Borla 05-09 Mustang 4.0L V6 AT/MT RWD 2dr SS Exhaust (rear section only)

Borla
BOR11751
808422117517
Axle Back
7 Units In Stock - Ships Next Business Day
$ 559.99 $ 499.99
FREE Ground Shipping!
$ 499.99

SKU: 11751   |   UPC: 808422117517

Borla 05-09 Mustang 4.0L V6 AT/MT RWD 2dr SS Exhaust (rear section only)

This Borla axle-back exhaust system (PN 11751) installs on the rear section of 2005-2009 Ford Mustang 4.0L V6 models with automatic or manual transmission, rear-wheel drive, and 2-door coupe or convertible body styles. It delivers double-digit horsepower and torque gains, improved fuel economy, and the aggressive Borla Sound of Power through 724 CFM of flow for an intoxicating throttle response and heart-pounding exhaust note. Crafted for enthusiasts, this system combines performance increases with durable construction and motorsport styling.

Key Features

  • T-304 Stainless Steel Construction: Aircraft-grade material ensures lightweight durability, corrosion resistance, and longevity over standard steel.
  • 2.5-inch Mandrel-Bent Tubing: CNC-bent for smooth exhaust flow, delivering a 346 CFM increase over stock for noticeable power and efficiency gains.
  • Straight-Through Muffler Design: Provides solid double-digit horsepower and torque while enhancing throttle response and fuel mileage.
  • 4-inch Bright Chrome Tip: Large round, rolled, angle-cut T-304 stainless steel tip adds refined motorsport styling to the rear exit.
  • Million-Mile Warranty: Lifetime coverage on all street exhaust systems with no hassle replacement for peace of mind.

Product Notes

  • Axle-back system replaces rear exhaust section only for easy upgrade without full cat-back replacement.
  • Direct bolt-on design uses factory hangers and connections.
  • Off-road and street-legal with 724 CFM total flow for power and MPG improvements.

Installation Notes

  • Professional installation recommended.
  • Bolt-on process takes 30-60 minutes with basic tools; no cutting or welding required.
  • Compatible with factory mid-pipe and hardware on all specified V6 models.

This Part Fits

Year Make Model Submodel
2005-2009 Ford Mustang 4.0L V6 Coupe (Base, Premium)
2005-2009 Ford Mustang 4.0L V6 Convertible (Base, Premium)

Why Choose Borla?

  • Proven Mustang heritage from Grand-Am champions to Shelby and Roush race cars.
  • Award-winning patented technology for precise sound tuning and performance flow.
  • Over 40 years pioneering T-304 stainless steel exhausts for street and track.

Frequently Asked Questions

  • Q: Will this fit both automatic and manual transmission Mustangs?
    A: Yes, PN 11751 axle-back fits 2005-2009 Ford Mustang 4.0L V6 AT/MT coupe and convertible with rear-wheel drive.
  • Q: What material is used and how is the tip finished?
    A: Full T-304 stainless steel construction with a bright chrome embossed 4-inch round rolled angle-cut tip for durability and style.
  • Q: What warranty coverage is provided?
    A: Million-Mile warranty covers defects on material and workmanship for the original purchaser with simple registration.

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed in one package measuring 38 x 13 x 13 inches
  • Weight: 22.2 lbs
Read More
Read Less

Request For Information

Have questions about ? Fill out the form below and we'll get back to you by the next business day.
Axle Back

Axle Back

Systems by Brand, Sound, and Vehicle Application Browse premium axle-back exhaust systems at Black Ops Auto Works, including performance-focused upgrades from trusted brands like MBRP, Borla, Corsa, aFe, Injen, REMARK, ISR Performance, Kooks, Torque Solution, and AWE. This collection is built for enthusiasts looking to improve exhaust sound, rear-section styling, and overall driving experience without replacing the full exhaust system. Whether you are upgrading a daily driver, muscle car, sport compact, truck, or SUV, our axle-back exhaust collection helps you find high-quality systems designed for aggressive tone, clean fitment, and long-term durability. Axle-Back Exhaust Systems for Sound, Style, and Performance Axle-back exhaust systems are a popular upgrade for drivers who want to change the rear section of the exhaust for a more distinctive tone and a more aggressive appearance. This collection supports shoppers searching for: Axle-back exhaust Axle-back muffler systems Perfor...

View Axle Back Products
Borla

Borla

Shop Borla exhaust systems at Black Ops Auto Works, your trusted source for Borla cat-back exhaust systems, axle-back exhausts, mufflers, resonators, exhaust tips, X-pipes, H-pipes, mid-pipes, and exhaust accessories. Borla is known for producing high-performance exhaust systems engineered for aggressive sound, improved exhaust flow, long-term durability, and vehicle-specific fitment. Whether you are upgrading a muscle car, performance car, truck, SUV, Jeep, or daily-driven street build, Borla exhaust products deliver the sound, quality, and performance enthusiasts demand. Shop Borla Cat-Back, Axle-Back & Exhaust Components At Black Ops Auto Works, we carry a wide selection of Borla exhaust parts for performance, sound, and style upgrades.   Popular Borla Product Categories: Borla Cat-Back Exhaust Systems – Complete exhaust upgrades engineered for improved flow, tone, and performance Borla Axle-Back Exhaust Systems – Rear-section upgrades for refined sound and easy installati...

View Borla Products
Exhaust Systems

Exhaust Systems

Shop performance exhaust systems at Black Ops Auto Works for cars, trucks, SUVs, and enthusiast builds. This collection includes premium cat-back exhaust systems, axle-back exhausts, turbo-back exhausts, headers, manifolds, downpipes, mufflers, resonators, exhaust tips, connecting pipes, X-pipes, Y-pipes, H-pipes, and catalytic converters designed to improve exhaust flow, sound, style, and overall performance. Whether you are upgrading a street car, tow rig, off-road build, diesel truck, muscle car, or track-focused vehicle, our exhaust selection is built around quality materials, proven fitment, and performance-driven design. Shop Exhaust Systems by Category Browse exhaust components and systems for a wide range of performance needs, including: Cat-back exhaust systems Axle-back exhaust systems Turbo-back exhaust systems Header-back exhaust systems DPF-back exhaust systems Downpipes Headers and exhaust manifolds Direct-fit catalytic converters Universal catalytic converters Muffle...

View Exhaust Systems Products
Military & First Responder Discounts

Military & First Responder Discount Program

Black Ops Auto Works proudly honors active duty military, veterans, National Guard, reserves, police officers, firefighters, and EMTs with an exclusive 5% discount on all performance parts and carbon fiber upgrades. Verify instantly and start saving today.

Learn More & Apply

Your cart

×