Every Gibson Performance Header is Dyno-tuned and engineered to deliver more usable horsepower and torque at low and mid-range RPM highway speeds. Improves engines ability to breathe and cooler operating engine temperature. Designed as a direct replacement for the factory manifolds, using the stock crossover pipe. They are well suited for lowered and raised vehicles, street and off-road. Will not affect the factory warranty. No welding required. Backed by a Lifetime Limited Warranty. Uses OEM style connections. 3/8 Heavy Duty Laser Cut Port Flanges- No Warping or Leaking. Premium Gaskets and Hardware included. Backed by a Lifetime Limited Warranty. Off Higway Use Only, Not Street Legal.
Vehicle Fitment: Mustang 4.0L V6 2005-2010