removing cat?

[armyman06]

I have a 89 with a 350 and stock exhaust. 3 inch inlet, dual outlet. Will removing the cat effect my O2 sensor, or will the truck run just fine without the cat?

[TexasF355F1]

I'd advise you not to remove your cats. You will not gain anything by it, and the truck will sound like shit.

[broughy84]

I gutted the cat on mine...sounds fine...nice crackle

Of course i run absolutley not mufflers or anything, just straight out the bed. Every now and then I get a SES light because of it, but I don't really worry about it.

[armyman06]

i put a flo pro v force muffler on it and it doesnt sound much different than stock. I think removing the cat will give me just the little extra sound i want. I just dont want to jack up my computer and have the truck running like crap.

[NWChevyGuy]

If you take the cat out of your 89, it will sound sweet. I HATE how cats sound on trucks. Make it sound like there is plastic wrap in the pipes. In my old 94, I had headers, no cat, and a 3" flowmaster. MANY people asked me how to make theirs sound the same. Don't run straight pipes though with no mufflers. That will sound like junk. Make sure you have a good deep toned muffler. Also make sure there is no O2 sensor behind the cat. if not, you will never see a SES light with the older ODB 1 computers.