MAC 2-1/2" Pro-Chamber Off-Road H-Pipe for use with Shorty Headers on 2005-2010 Mustang GTs.
This Pro-Chamber h-pipe goes 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 use both outlets. Made of stainless steel.
*Can also be used on the stock intake manifold.
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Good quality hardware and included mounts. The ground clearance is reduced some from the factory H-pipe. Install went well but you will need a universal jointed socket to remove the factory catted downpipe. The sound is great with the Borla Stingers. Highly recommended for someone that is looking for deep classic sound with some level or refinement. It's deep and smooth with a very deep idle and the lugging around in a high gear has a nice exhaust note.