its the mufflers, I ran cat delete for a long time in my ride, and she sounded good...when mufflers came off...then...
No, it's the cats. The cars actually sound pretty good with just a muffler delete. Once the cats come off(with a muffler delete) they are just loud and annoying.
I had the cats punched on one of my LT1 cars, with the stock mufflers on it. It sounded exactly the same as stock, other than the whirling and "ting" noise it added to the exhaust note. On another LT1 car, I deleted the cats, and left the stock mufflers. That one actually sounded better than the one with the cats punched... well, until the mufflers rusted out, and I punched a screw driver into them by hand to see how bad they were. cwm4
The cats made all the difference in the world on Jesus. Th spintechs sounded ok with cats, but they sound amazing now, with the cats hacked off. even my best friend noticed, and said the car sounded a lot better. He really doesn't have much of an hear for performance mufflers and what not.