I have LTs, off road X and a Maggie Cat Back and it sounds awesome...a buddy out here in Colorado has the same combo with a Bassani Cat Back and it sounds mean. Not as loud at WOT, but alot more grumbly
I will attest that Hank's car sounds awesome, and I think the longtubes make the big difference on his setup. The car is RIDICULOUS loud at WOT. I had to cover my ears when he was dynoing.