Kooks 1-3/4" x 3" late GT500 header and GREEN catted H-pipe kit — supercharger-safe H-pipe bundle for built late GT500 builds. GREEN cats survive supercharged heat. H-pipe routing delivers traditional GT500 growl.
Fits 2011-2014 Ford Shelby GT500 5.4L / 5.8L 4V. Connects directly to OEM cat-back.
Kooks Headers & Exhaust has been hand-building stainless headers and exhaust systems in Statesville, North Carolina since 1962. Every component is welded by experienced fabricators in the same shop where the company's racing roots were established. 304 stainless construction handles supercharged heat and corrosion.
Includes 1-3/4" x 3" late GT500 long tube headers, 3" x 2-3/4" GREEN catted H-pipe, and all required hardware. Pair with the OEM cat-back downstream.
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011-2014 | Ford | Mustang | Shelby GT500 |
