hey guys i have a 2002 yukon denali with about 90,000 miles on it, and it has the stock muffler and exhaust system..but the muffler makes some drone type noise..it usually starts after i hit the gas..let off and then hit the gas again..i took it to my dealership and they said its not a big deal has in being bad for the truck but if the noise really bothered me i would need a new exhaust system..so i was wondering if i went with one whats a good one to use? im not after the fart can sound, to be honest i really love that old 70's muscle car sound..deep rumble and growl but not annoying..any suggestions?