Coyote Bolt Ons Fly By Wire
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It still intrigues us that the '11-'13 Mustang GT exhaust is so involved, with various steps (down and up) in its diameter. For the uninitiated, this is one side of the OEM H-pipe, which is reduced to 2.25-inch diameter on both sides, before returning to its largest size (3 inches). View Related Article
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