The Borla 11951 is an 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 bright chrome on T-304 stainless steel tips. 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 bright chrome on T-304 stainless steel
- Fitment: GT models with Active Valve Performance Exhaust; coupe and convertible
- Made in the USA
- Part number: 11951
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 11951 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 11951 is designed for Mustang GT models that have the factory Active Valve Performance Exhaust.
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.
How does the S-Type sound compare to ATAK?
S-Type delivers an aggressive classic Borla tone with no interior drone. ATAK is Borla's loudest street tier, so S-Type sits one step below ATAK in volume while staying more aggressive than the Touring level.
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.
