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  1. Quad Exhuast kits

    2011 - 2014 Mustang GT Tech
    Hey everyone, Has anyone found a good sounding Quad exhuast? I like the new Boss exhuast where 2 exit out infront of the tire and the other exit in the back... I want somthing that loud with a deep rumble, but i hate it the ones that when you get high RPM's the pop and crack and sound bad... any...