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EXCEPT Convertible and Active Valve Exhaust (4 tips). For convertible applications use PN 11938 and 11939. Features bright chrome on T-304 stainless steel tips. BORLA Cat-Back and Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled 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.
Borla Axle-Back Exhaust System - ATAK 11890
Specifications:
| Construction | All Welded |
| Prop 65 (C, R or CR) | CR |
| Title | 2015-2021 Ford Mustang 2.3L EcoBoost/ 3.7L V6 Axle-Back Exhaust System ATAK |
| Title Extended | Mustang 2.3L EcoBoost/ 3.7L V6 2015-2020 Axle-Back Exhaust System ATAK Part # 11890 |
| Tip Diameter | 4 in. |
| Tip / Outlet Finish | Bright Chrome On T-304 Stainless Steel |
| Tail Pipe Material | Stainless Steel |
| Tail Pipe Diameter | 2.250 in. |
| System Type | Axle Back |
| Prop 65 Yes/No | Yes |
| Prop 65 - Short Label | Proposition 65 Warning.JPG |
| Exhaust Type | Axle-Back System |
| Prop 65 - Long Label | WARNING: This product in the physical form it is sold does not present a hazard. However, operations including, but not limited to welding, brazing, or thermal cutting can expose you to chemicals including Chromium, Nickel, Cobalt, Arsenic, Cadmium and Lead which are known to the State Of California to cause cancer, birth defects and other reproductive harm. For more information go towww.P65Warnings.ca.gov |
| Outlet Outside Diameter | 4.000 in. |
| Off Road Use Only | No |
| Muffler Type | Straight-Through |
| Material | T-304 Stainless Steel |
| Inlet Inside Diameter | 4.000 in. |
| Grade Type | Performance |
| Exit Style | Single Split Rear Exit |
| Exit Position | Split Rear |
| Tubing Diameter | 2.250 in. |
| Description_SHO | Axle-Back System |
| Description_INV | BORLA Axle-Back System |
| Description_DEF | Exhaust System Kit |
| Description_DES | Axle-Back Exhaust System - ATAK |
| Description_ASM | 2015-2023 Ford Mustang 2.3L 4 Cyl.. EcoBoost/ 2015-2017 3.7L V6, Automatic/ Manual Transmission Rear Wheel Drive 2 Door EXCEPT Convertible and Active Exhaust Systems (4 tips). |
| Description_EXT | ATAK Axle-Back Exhaust System 2015-2023 Ford Mustang 2.3L 4 Cyl.. EcoBoost/ 2015-2017 3.7L V6, Automatic/ Manual Transmission Rear Wheel Drive 2 Door EXCEPT Convertible and Active Exhaust Systems (4 tips). |
| Description_MKT | EXCEPT Convertible and Active Valve Exhaust (4 tips). For convertible applications use PN 11938 and 11939. Features bright chrome on T-304 stainless steel tips. BORLA Cat-Back and Axle-Back exhaust systems feature patented straight-through and multi-core technology designed to unleash hidden horsepower. Increased exhaust velocity adds power, driving excitement, fuel economy, and the distinctive BORLA Sound of Power respected by motoring enthusiasts everywhere. Each system is built from premium T-304 stainless steel, superior to T-400 series knockoffs (such as 409), to give you the absolute best in performance and durability. Ultra-smooth mandrel bends ensure maximum flow & power, and precision computer-controlled 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. |
| Description_FAB | EXCEPT Convertible models and vehicles with Active Valve Exhaust System (4 tips) |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2015 | Ford | Mustang | ||
| 2015 | Ford | Mustang | ||
| 2016 | Ford | Mustang | ||
| 2016 | Ford | Mustang | ||
| 2017 | Ford | Mustang | ||
| 2017 | Ford | Mustang | ||
| 2018 | Ford | Mustang | ||
| 2019 | Ford | Mustang | ||
| 2020 | Ford | Mustang | ||
| 2021 | Ford | Mustang | ||
| 2022 | Ford | Mustang | ||
| 2023 | Ford | Mustang |




