Description
This Kooks kit pairs long tube headers with matching connection pipes for the 2015-2026 Ford Mustang GT 5.0L (LHD), giving you a complete, matched system from the cylinder heads back.
Available in primary size: 1-3/4″, 1-7/8″, 2″; cat option: Performance Cats, GREEN Cats, High Output GREEN Cats, ULTRA GREEN Cats, Street/Strip.
Features
- Kooks 304 stainless steel long tube headers
- Matching Kooks connection pipes
- Mandrel-bent tubing and thick laser-cut flanges
- Gaskets and bolts supplied, with O2 sensor extension harnesses where needed
Cat Options
- Performance Cats: Kooks standard high-flow race cats. Not for use on forced induction applications.
- GREEN Cats: Kooks GREEN high-flow catalytic converters.
- High Output GREEN Cats: 304 stainless steel body with a high-capacity 300-cell 4-1/2″ metallic substrate, designed for higher-horsepower applications.
- ULTRA GREEN Cats: EPA-certified Kooks cats with a 304 stainless steel body and a high-capacity 400-cell 4-1/2″ metallic substrate.
Fitment
- 2015-2026 Ford Mustang GT 5.0L V8
- 2015-2026 Ford Mustang GT Premium 5.0L V8
- 2015 Ford Mustang GT 50 Years Limited Edition 5.0L V8
- 2019-2020 Ford Mustang Bullitt 5.0L V8
- 2021-2023 Ford Mustang Mach 1 5.0L V8
- 2024-2026 Ford Mustang Dark Horse 5.0L V8
- 2024-2026 Ford Mustang Dark Horse Premium 5.0L V8
Fits: 2015-2026 Ford Mustang GT 5.0L V8, 2015-2026 Ford Mustang GT Premium 5.0L V8, 2015 Ford Mustang GT 50 Years Limited Edition 5.0L V8, 2019-2020 Ford Mustang Bullitt 5.0L V8, 2021-2023 Ford Mustang Mach 1 5.0L V8, 2024-2026 Ford Mustang Dark Horse 5.0L V8, 2024-2026 Ford Mustang Dark Horse Premium 5.0L V8
Part No.: 1151H222 / 1151H232 / 1151H422 / 1151H432 / 1151H442 / 1151H452 / 1151H632 / 1151H642 / 1151H6SS

