So this Sunday, I will be having my headers and off road x pipe installed on my 11 pony. Just wondering what too expect when it comes to loudness from the exhaust since my cats are coming off. Tonight I was with a subject who had an 04 Gt with headers and off road x pipe. His exhaust was so freaking loud and awesome. When he would accelerate the vehicle his exhaust was crazy loud and the car sounded so freaking aggressive. Now I'm not talking about the rumble of the engine but the sound of the exhaust. When I asked this 04 Gt owner the secret of his loud exhaust he said mainly its the removal of his cats. He said the actual exhaust pipes were nothing special and a cat back system but the flow was not much better than the newer mustangs design from the factory. He said the tone and loudness it's from his cats being removed. It sounded sick and awesome.
So here is my question, would a 11 5.0 with BBK Headers and off road x pipe along with Flowmaster Axle back exhaust
system be greatly louder than a 11 v6 with the same exact headers, off road x pipe and same Flowmaster axle back. Now I'm not talking about the rumble of the engine but the loudness of the exhaust when reving engine up or throttle wide open when accelerating. I have heard people say even on the v6 when you take the cats off, it very loud when accelerating.