Ford Mustang 2011-2013 Long Tube Raw Steel Exhaust Header The rods are x-rayed and

The rods are x-rayed and ultrasonically tested with all surfaces shot peened and stress relieved

These Speedmaster crankshafts are precision-ground and micro-polished to exacting tolerances

All kits come complete with 4130 heat-treated

The cells have foam in the base to prevent fuel aeration

while Cleveland/Modified applications use precision laser-cut steel for a factory-style fit and finish

Ford Mustang 2011-2013 Long Tube Raw Steel Exhaust Header The rods are x-rayed andIncrease your horsepower and torque for your ride just bolt on these Speedmaster headers! These headers are designed with 3 8 in. thick laser cut flanges and mandrel bent primary tube. If your vehicle is using aftermarket components, parts from other applications, or custom altered parts, then it is the installer's responsibility to verify fitment.