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Borla covers every part for the life of your vehicle. The world's most experienced (and winningest) exhaust brand stands behind this part forever.
Authorized Borla dealer. Borla MAP pricing — same as Borla direct. Expert install available in Thousand Oaks, CA. Questions? Chat with Senna or call our Mustang specialist.
Premium Borla sound character. T-304 stainless construction. Drone-free at highway speed.
Adapter Kit allows BORLA® Cat-Back™ systems 140837, 140837BC, and 140837CF to be used on 2021-2023 Mustang Mach 1 vehicles. Adapter Kit includes 2) 2.25″ I.D. ilnet x 2.75″ I.D. outlet x 5″ long adapters and 4) clamps. Each Adapter Kit is built from premium, high-quality T-304 austenitic stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Precision computer numerical control (CNC) manufacturing ensures an accurate fit.
Best of all, BORLA® stands behind every system with a Million-Mile Warranty, just what you‘d expect from the world‘s most experienced (and most winning) exhaust brand.
| Vehicle | Years | Engine |
|---|---|---|
| Ford Mustang Mach 1 | 2021–2023 | 5.0L Coyote V8 |

If you want the install done by experienced Mustang techs who run Borla daily, drop the car off in Thousand Oaks. Otherwise, this is a direct bolt-on with clear instructions and clamp reuse from your existing Borla Cat-Back system.
Authority: Charles Siritho · McLaren Artura Trophy owner · Spotter for Branden Sorensen FD Pro (E46 LS+Whipple, 6th at Long Beach R1 2026) · 10 yrs S550/S650 Mustang specialist
133 Borla parts — Cat-Backs, Axle-Backs, X-Pipes, H-Pipes, Connecting Pipes — for Mustang, Corvette, Camaro, Silverado, F-150, and more. MAP pricing always. Expert install in Thousand Oaks.