MAC 2-1/2" Off-Road Pro-Chamber H-Pipe for 1986-1993 5.0L Mustangs Equipped with Shorty Headers or Stock Manifolds.The Pro-Chamber h-pipes go even further than traditional h-pipes to produce more torque and horsepower by merging exhaust pulses in one area. Merging of all exhaust gasses creates higher temperatures which creates a boost in exhaust velocity, plus forcing exhaust gas to see both outlets. Eliminates catalytic converters. This h-pipe features a natural uncoated finish.
*For use with shorty headers or stock manifolds.
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