[Whodeeny]

I had a 71 Pantera with the GTS performance exhaust system. I didn't think it was that loud. It could be loud standing next to the car and revving the engine but in the car it was fine. It did have annoying resonance at about 2200 rpm which was characteristic of the short exhaust system. Many of the Panteras have been modified with performance exhaust systems that are very loud.
BD