-10%
Borla 2018 Ford Mustang GT 5.0L AT/MT 2.5in S-Type Exhaust w/ Valves (Rear Section Only)-Borla-BOR11951
Borla 2018 Ford Mustang GT 5.0L AT/MT 2.5in S-Type Exhaust w/ Valves (Rear Section Only)-Borla-BOR11951
Borla 2018 Ford Mustang GT 5.0L AT/MT 2.5in S-Type Exhaust w/ Valves (Rear Section Only)-Borla-BOR11951
Click to zoom in

Borla 2018 Ford Mustang GT 5.0L AT/MT 2.5in S-Type Exhaust w/ Valves (Rear Section Only)

Borla
BOR11951
808422119511
Axle Back
9 Units In Stock - Ships Next Business Day
$ 2,127.99 $ 1,899.99
FREE Ground Shipping!
$ 1,899.99

SKU: 11951   |   UPC: 808422119511

Borla 2018-2023 Ford Mustang GT 5.0L AT/MT 2.5in S-Type Exhaust w/ Valves (Rear Section Only)

Borla 11951 delivers the S-Type axle-back exhaust system as a rear section replacement for 2018-2023 Ford Mustang GT 5.0L V8 models equipped with active exhaust valves. This system fits coupe and convertible body styles, including Bullitt and Mach 1 variants, for automatic or manual transmissions. Experience added horsepower, torque, improved fuel economy, and the signature Borla Sound of Power that excites enthusiasts.

Key Features

  • S-Type Sound: Provides an aggressive, race-inspired exhaust note controlled by factory active valves for street or track driving.
  • T-304 Stainless Steel Construction: Ensures durability and resistance to corrosion with premium material superior to common alternatives.
  • 2.5-Inch Mandrel-Bent Tubing: Allows smooth exhaust flow for power and torque increases through patented straight-through design.
  • Dual 4-Inch Bright Chrome Tips: Adds motorsport styling with split rear exit on T-304 stainless steel for a bold appearance.
  • Multi-Core Technology: Boosts exhaust velocity, enhances throttle response, and delivers a heart-pounding soundtrack with every shift.

Product Notes

  • Fits only models with factory active exhaust valves; retains valve functionality for adjustable sound levels.
  • Rear axle-back section only; pairs with stock or other front sections for custom setups.
  • One-piece all-welded design ships ready for bolt-on installation with no modifications.

Installation Notes

  • Professional installation recommended.
  • Bolt-on design uses factory hangers and mounts; no cutting, welding, or tuning required.
  • Verify active valve presence before purchase; 30-60 minute install time for experienced mechanics.

This Part Fits

Year Make Model Submodel
2018-2023 Ford Mustang GT
2018-2023 Ford Mustang GT Premium
2019-2020 Ford Mustang Bullitt
2021-2023 Ford Mustang Mach 1

Why Choose Borla?

  • Leaders in stainless steel exhaust since 1978 with systems for classics to modern performance cars.
  • Every system backed by Million-Mile Warranty for unmatched long-term reliability.
  • Precision CNC manufacturing and mandrel bending guarantee exact fit and maximum performance.

Frequently Asked Questions

  • Q: Does this exhaust fit 2019-2023 Mustang GT convertibles with active valves?
    A: Yes, direct fit for 2018-2023 coupe and convertible GT, Bullitt, and Mach 1 models equipped with factory active exhaust valves.
  • Q: What material and tip details are used?
    A: Full T-304 stainless steel tubing and tips with 2.5-inch diameter, 4-inch bright chrome-finished outlets in split rear position.
  • Q: What warranty coverage is provided?
    A: Borla offers a Million-Mile Warranty on materials and construction defects when installed properly.

Shipping & Handling

  • Method: UPS Ground or FedEx Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Securely boxed in one oversized carton (52in x 16in x 16in)
  • Weight: 28 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
Ford Mustang Parts & Accessories

Ford Mustang Parts & Accessories

Shop Ford Mustang parts and accessories at Black Ops Auto Works for premium aftermarket performance parts, suspension upgrades, brake kits, exhaust systems, cold air intakes, carbon fiber body parts, lighting upgrades, fuel system components, and styling accessories. Whether you drive a classic Ford Mustang, SN95, New Edge, S197, S550, S650, Mustang EcoBoost, Mustang GT, Mach 1, Shelby GT350, Shelby GT500, or Dark Horse, this collection is built for enthusiasts who want better power, handling, braking, airflow, drivability, and aggressive styling. From daily-driven street cars to drag builds, track cars, and show cars, our selection of Ford Mustang aftermarket parts is curated for fitment, quality, and performance. Shop Ford Mustang Performance Parts by Category Browse Mustang performance parts across popular upgrade categories, including: Ford Mustang cold air intakes and intake parts Ford Mustang brake pads, brake rotors, and brake kits Ford Mustang exhaust systems, cat-back exha...

View Ford Mustang Parts & Accessories 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

×