+1Personally from a man who started out with no Cats, its just sounds so much cleaner with the hi-flo cats installed and better. Plus there is zero noticeable difference performance wise.
The loud set up is cool at first but gets old real quick.
I agree with Don, Long tubes are for better quality sound and performance. But they are not for being the loudest. The loudest setup you can have is stock manifolds, o/r X pipe (H is a tad quieter), and no mufflers or glasspacks. The manifolds are louder than long tubes, but also much more annoying without a muffler.if you want to improve the sound, go with long tube headers and leave the cats in. it's what i have and it's already the loudest around AND it sounds great. i'm usually the loudest even when we go to the race track (road course) too.
don't sacrifice quality for quantity. i think you'll regret it.
True, but straight pipes with slp lm1's is no better than straight pipes all the way out. Either way sounds like garabage, and I have tried both.I dont think the OP meant straight pipes without mufflers, he just said he was replacing the cats with straight pipes. Just the cats.