stilllearnin

I am planning on gutting the cat. on my 2000 GT, I already have found the o2 bypass sensors so the "check engine" light doesnt come on. is this a wise move, and what can i expect to get out of it?

sstang

I would like to know too. To gut the cat, do you just cut everything out so its straight through?

stilllearnin

well you obviously leave the muffler but you just remove the catalytic converter

Gone22

i've heard of boiling, but i didn't believe it. I would also want to know how much resistance is a cat putting out. Cause if it's not too much then it could be a waiste of time.

Blck98GT

Most people that I have heard of doing this is jsut taking it off and beating the crap out of the inside of it with a long screwdriver etc.. If that works or not I have no idea but they say it does...

sstang

I didn't mean the exhaust system, I meant just the cat... I never mentioned mufflers. I was talking about cutting everything out of the cat so there are no restrictions... that would be gutting the cat.

monkeydude3

uhhhh have fun gutting the cats on these... there are 2 in line on each side on the 99-04s and 3 in line on each side on the 96-98s

you are honestly better off just buying an o/r H or o/r X pipe for your time spent on it, most are usually under $200. I just picked one up (on way via UPS) for $90 to my door

04BlueGT

Okay, time for some hillbilly mechanic work!

Get a length of rebar and drive that sucker thru the cats with a sledge hammer. Then, pour some motor oil in the cats and use a torch to light the oil. Use the torch to keep the oil burning until it's all gone. Allow to cool and bolt the mid pipe back on.

Now THAT'S the hillbilly way of doin' thangs!

Or...

Take monkeydude's advice and just buy a mid pipe. The catted versions flow so well that you probably won't notice and the don't have the raspy sound of the O/R versions.

wwmost

it wont sound right. just to let you know

Dan04COBRA

Mac O/r H-pipe...$130-140 shipped.