OK you know what i have by the sig....my car sounds great when i rev it...but if i let off the throttle real fast i get this nasty rasp.....what to do????? Cats??, Headers??, get rid of cut out???


If i were to gut my cats would it make it any better?? any downs falls to guttin cats?? smell? bad

 

Rasp gets worse with gutted cats. They resonate, but it's bearable.

 

it doesnet seem that you have any cat-back system, i heard the hooker cat-back has no rasp or you could weld in two dynomax bullet mufflers. they seem to take it away

 

Gutting the cats will make it 10 times worse, your getting rasp through the catback or through the cutout? If its the catback I would try a different system...

 

two things:

1)you should have expected rasp with a cutout, only cure is a bullet, B&B, or put your stock exhaust back on

2)your 160 stat is costing you about 5-10 horsepower, due to your computer not pulling out of warm-up mode which pulls timing across the board.

 

If i were to get Hooker LTs and high flow cats would that get rid of the rasp???

And Artic i have never heard of that before ..the 160 actually bring you down in Hp i have used my programmer to set the computer to a 160 thermo shouldnt that get rid of the problem??

 

Removing/gutting Cats is only worth about 3-4rwhp. Not worth it if you have to deal with the Smog *****.
I got rid of my CutOut and installed a Random Tech Catback, no rasp.

 

Get LT's, off-road y-pipe, and a SLP Loudmouth exhaust and you won't hear the rasp anymore. Hell, you won't hear anything, you'll be def!!!!

 

Oh you'll hear the rasp, trust me. It was loud as hell when I would get on it.