2011-2014 Shelby GT500 5.4L & 5.8L Kooks "GREEN" Catted X-Pipe 11423300

Powerful Exhaust Part with Kooks "GREEN" Converters

Aftermarket headers and a mid-pipe are some of the most effective upgrades for your Shelby GT500's 5.4L or 5.8L V8 when it comes to making more horsepower and torque. However, long tube headers and performance mid-pipe systems make it difficult, if not impossible, to make it through emissions testing successfully. That's the biggest reason why our friends over at Kooks developed their lineup of Mustang mid-pipes that feature their newest "GREEN" EPA-certified catalytic converters. This X-pipe bolts up to Kooks 2011 to 2014 Shelby GT500 long tube headers and gives your awesome GT500 build the power, sound, and performance it needs while being completely able to pass emissions testing in any state that hasn't adopted CARB's more strict pollution guidelines. The Kooks "GREEN" Catted X-Pipe for the SVT Shelby GT500s is a excellent way to get the power you need without all the hassles of a traditional exhaust overhaul.

Mandrel-Bent Stainless Steel Catted X-Pipe

Each of these X-Pipes use 3" diameter tubing with a 2-3/4" outlet that is all mandrel-bent to ensure low levels of back pressure and restrictions while promoting maximum exhaust outflow. The X-pipe bolts on to Kooks long tube headers and your Shelby's factory cat-back system and most aftermarket cat-back exhaust kits. Kooks' GT500 X-pipe is made entirely out of high-quality 304 stainless steel which can resist corrosion and discoloration in just about any climate. The system is built around Kooks' "GREEN" catalytic converters which were developed in conjunction with Global Emissions Systems to deliver big power while still being able to pass emissions. These unique converters can handle huge power levels and temperatures of up to 1500 Fahrenheit while still allowing your Pony to pass most state emissions testing with no hassles. Each X-pipe even comes with installation hardware and instructions.

Header fitment: this X-pipe will only fit Kooks long tube headers.

48-State Legal Catalytic Converters: the Kooks "GREEN" cats are EPA-certified and will pass emissions testing in any state that has not adopted CARB standards. This y-pipe is not street-legal for use in California, New York, or any other state that has adopted CARB pollution guidelines.

Old Kooks Part Number: 6028-CX-2011-GREEN.