This Pypes Catted X-Pipe is designed as a direct bolt-on for the 1999-2004 4.6L Ford Mustang GTs with either aftermarket short tube headers or the factory manifolds and a dual catback exhaust installed.
The Pypes Catted X-Pipe is excellent when it comes to balancing out the gas pressures in your exhaust system. This Pypes X-Pipe creates more power and torque than a traditional H-pipe. Why? Because the exiting exhaust pulses are merged at the "X", resulting in less exhaust back pressure for more power.
This free flowing Pypes X-Pipe for the 1999-2004 GTs not only increases power, but it also adds a raspy, race car growl to the sound of your exhaust with its modern "X" crossover pipe design.
Pypes' unique 3-piece modular construction makes it quick and easy to add or remove catalytic converters to your exhaust system in just minutes, depending on your driving needs.
Pypes uses sturdy, 16-gauge, 409 stainless steel, mandrel-bent, 2.5-inch tubing for improved exhaust flow and features welded reinforcement plates for additional strength. The included High flow catalytic converters far outperform the restrictive factory cats to provide a significant increase in horsepower and torque.
This X-Pipe is not CARB certified, therefore it is not legal for use in California or other states adopting California emission standards.
For the 2004 Model Year the O2 Sensors are relocated. These vehicles will require the use of 24-Inch O2 Sensor Plug-In Extended Wires.