Kooks 1-7/8" x 3" stainless long tube headers for built GT500s — bigger pulley, heads/cams, or larger blower setups where the 1-3/4" tube becomes the choke point. The 1-7/8" primary keeps the upper RPM range open on supercharged builds making real numbers. 16 gauge 304 stainless construction with 3/8" thick laser-cut flanges holds up under sustained supercharged heat. Oval port, mandrel-bent primaries.
Fits 2007-2010 Ford Shelby GT500 (5.4L 4V). Requires a Kooks X-pipe or H-pipe to complete the exhaust connection. EGR fitting is included for cars retaining factory emissions equipment. Stock bolt pattern bolts directly to the 4V cylinder heads.
Kooks Headers & Exhaust has been hand-building stainless headers and exhaust systems in Statesville, North Carolina since 1962. Every Kooks header is welded by experienced fabricators in the same shop where the company's racing legacy was built. 304 stainless construction handles supercharged heat and salt-belt corrosion that destroys mild steel headers.
All hardware required for installation is included, along with EGR fitting. Pair with a Kooks GT500 X-pipe (PN 11323100 / 11323120) or H-pipe (PN 11323400), plus an appropriate cat-back downstream.
