So this week I installed my TSP catless longtubes. Before this i had muffler deletes and that's it. So now i have catless longtubes, stock resonator, and no mufflers and it is extremely raspy. So I'm looking for advice on hpipe and mufflers to weld in. I like the deep rumble of the older mustangs and looking to go more that route than the raspyness of the coyote. So what have you all used to get that deep rumble?