The Borla 11951BC is a 2.5in S-Type rear-section exhaust for the 2018-2023 Ford Mustang GT 5.0L V8 equipped with Active Valve Performance Exhaust. It fits both coupe and convertible models, including Bullitt and Mach 1, and delivers the classic S-Type sound with no interior drone through dual 4in round black chrome on T-304 stainless steel tips on each muffler assembly. Adding Borla X-Pipe with Mid-Pipes 60705 converts it into a cat-back system. Borla builds this system from premium T-304 austenitic stainless steel with patented straight-through, multi-core technology and ultra-smooth mandrel bends for maximum flow and a precise CNC-manufactured fit. It is handmade in the USA and backed by Borla's Million-Mile Warranty.
Specifications:
- System type: rear-section (axle-back) exhaust
- Sound level: S-Type
- Material: T-304 austenitic stainless steel
- Construction: patented straight-through, multi-core, mandrel-bent
- System diameter: 2.5in
- Tips: dual 4in round black chrome on T-304 stainless steel
- Fitment: GT models with Active Valve Performance Exhaust; coupe and convertible
- Made in the USA
- Part number: 11951BC
Vehicle Applications:
- 2018 Ford Mustang
- 2019 Ford Mustang
- 2020 Ford Mustang
- 2021 Ford Mustang
- 2022 Ford Mustang
- 2023 Ford Mustang
FAQ
What vehicles does the Borla 11951BC fit?
It fits 2018-2023 Ford Mustang GT 5.0L V8 models equipped with Active Valve Performance Exhaust, in both coupe and convertible, and includes Bullitt and Mach 1 coverage.
Does it require Active Valve Exhaust?
Yes. The 11951BC is designed for Mustang GT models that have the factory Active Valve Performance Exhaust.
How should the black chrome tips be cleaned?
Clean the black chrome tips with hot water and a microfiber cloth. Borla Stainless Steel Polish is not recommended on the black chrome finish.
Is this Borla exhaust street legal?
Borla classifies this as a street rear-section system and publishes that its street cat-backs, rear sections, and mufflers are 50-state emissions legal. It mounts behind the factory catalytic converters and removes no emissions equipment, so confirm legality for the specific model year and state before purchase.
Where is it made and how is it warranted?
Borla exhaust is handmade in the USA from T-304 stainless steel and is backed by Borla's Million-Mile Warranty.
