Kooks 99-04 Mustang 2-1/2" X-Crossover X Pipe with GREEN Cats
**For use with Kooks headers with 2-1/2" Collectors**
In addition to running Kooks header we suggest you compliment them with a matching X-Pipe. Kooks X-Pipes are specifically made for their headers and are available in Catted and Offroad Versions. GREEN cats will work with factory tuning and not trip your CEL (check engine light).