I used the Summit X pipe on the stock 5.2 with the Hedman shorty headers and a 2.5" mandrel bent custom exhaust with the Summit dual exhaust kit with the turbo mufflers...I don't think it sounds like a Mustang at all. It sounds like a smooth running stock small block V8 through a generic exhaust system with a crossover. Truthfully speaking, I'm pleased with the way it sounds.
