- Made of 304 Polished Stainless Steel
- 1 5/8" Tube Diameter
- Includes Bolts and Gaskets
- Includes H-Pipe w/ Hi-Flow Cats
Increase your 2011-14 Mustang GT's horsepower and Torque with these Pypes stainless steel long tube headers. These long tube step headers will give your Mustang an aggressive exhaust note while increasing your throttle response and horsepower. Testing of these new long tube headers has shown a 45 HP and 19tq to the wheels gain over Ford's stock headers. Pypes 2011-14 Mustang GT long tube headers feature mandrel bent 304 stainless steel tubing. Mandrel bends create optimum exhaust flow for maximum horsepower. Due to oxygen sensor relocation a tune may be required after installation.