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Make your Mustang sound like your Mustang
Choose the exhaust character that makes you look forward to the next drive. This Kooks active-valve cat-back offers Shotgun and Touring mufflers, both with carbon-fibre quad tips, for the 2018-2026 Mustang GT. Its OEM front connection lets you upgrade the rear exhaust while retaining the compatible factory front arrangement.
SKUs: 11514520, 11514570
Choose excitement or greater refinement
Shotgun is the louder, more open choice. Touring is designed with cabin refinement and reduced unwanted drone in mind. Pick the style for how you enjoy your Mustang, whether that means a more outspoken V8 note or a system you want to live with on longer journeys. Actual sound still depends on the rest of the exhaust.
An H-pipe and full 3" rear pipework
The 2-1/4" to 3" H-pipe provides the OEM front connection and feeds 3" mid-pipes, muffler sections and rear pipework. The system uses 304 stainless steel, with carbon-fibre tips giving the quad outlets a darker finish.
Keep the factory active-exhaust equipment
Installation reuses the factory active-exhaust actuator motors and springs on the Kooks valves. The car needs a quad-tip rear bumper or the appropriate quad-tip conversion. We recommend professional fitting to align the tips and check valve operation, hanger position and heat clearance.
Choose your option
| SKU | Muffler Type | Tip Color | Fitting / contents |
|---|---|---|---|
| 11514520 | Shotgun Mufflers | Carbon | Shotgun mufflers; carbon-fibre quad tips; OEM front connection; factory active-exhaust actuators reused. |
| 11514570 | Touring Mufflers | Carbon | Touring mufflers; carbon-fibre quad tips; OEM front connection; factory active-exhaust actuators reused. |
Vehicle fitment
| Years | Vehicle and trim | Engine | Applicable SKU / fitting conditions |
|---|---|---|---|
| 2018-2026 | Ford Mustang GT | 5.0L V8 | 11514520, 11514570 |
Ordering and delivery
Estimated lead time is 4-6 weeks. Delivery may be faster depending on stock levels. Shipping is charged separately.
Technical specifications
| Specification | Details |
|---|---|
| Application | Mustang GT 5.0, 2018-2026; quad-tip bumper or conversion required |
| System type | Active-valve cat-back with OEM front connection |
| Construction | 304 stainless steel |
| Front connection | 2-1/4" to 3" H-pipe |
| Rear pipework | 3" mid-pipes and rear/muffler sections |
| Muffler choices | Shotgun or Touring |
| Tips | Carbon-fibre quad tips on both offered options |
| Valve equipment | Reuses factory active-exhaust actuator motors and springs |
Frequently asked questions
Can I keep the factory front exhaust?
Yes. This cat-back uses the compatible OEM front connection, unlike the Kooks connection-back version that requires long tube headers and front connection pipes.
Are polished tips available on this listing?
The two options offered here both have carbon-fibre tips. The choice is Shotgun or Touring mufflers.
Do I need a quad-tip bumper?
Yes, either the factory quad-tip bumper or a suitable quad-tip conversion.
Does the system come with new active-exhaust motors?
The installation reuses the factory actuator motors and springs. Have those available when arranging fitting.
