CAT removal
Elder User
Joined: May 2007
Posts: 943
Likes: 0
From: North East, MD
I think they are some what right because right after i pulled my cat my truck would fall on its face on heavy accelaration. After 2-3 days it "relearned" and ran much better than with the cat. I would never go back to having a cat
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
Originally Posted by tjbeggs
An easy pass would be to gut the cat but the empty cat still causing poor flow with the chamber affect but you could sleeve the gutted cat. with either 3.5 or even better 4 inch pipe. just cut the cat body where 4 inch pipe will slide thru then weld the pipe to the body on each end. So pretty much you have an empty shell with a pipe going right thru the center.
Posting Guru
Joined: Nov 2007
Posts: 2,014
Likes: 1
From: Long Island, NY
I did not think you would pass emissions without it. Just the visual hu? Ill give it a go.
Any one know if emissions standards are the same for all states? Except of course California.
Any one know if emissions standards are the same for all states? Except of course California.
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Cargo Master
Joined: Jul 2006
Posts: 2,756
Likes: 38
From: Nampa, ID
Originally Posted by tjbeggs
...you could sleeve the gutted cat with either 3.5 or even better 4 inch pipe. just cut the cat body where 4 inch pipe will slide thru then weld the pipe to the body on each end. So pretty much you have an empty shell with a pipe going right thru the center.
RÖENTGEEP - I'd be very interested in how you do this. Pictures and a write-up would be nice, too. Would you take some measurements of the pipe inside diameter and length used?
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
Originally Posted by IDMooseMan
This is what I wanted to do, but I don't have the equipment. I don't know what the inside diameter of the cat pipe is. I was thinking about having a muffler shop widen the cat pipe and slide a straight pipe through. I would then clamp the ends of the cat where the exhaust pipe attaches.
RÖENTGEEP - I'd be very interested in how you do this. Pictures and a write-up would be nice, too. Would you take some measurements of the pipe inside diameter and length used?
RÖENTGEEP - I'd be very interested in how you do this. Pictures and a write-up would be nice, too. Would you take some measurements of the pipe inside diameter and length used?
Postmaster
Joined: Nov 2006
Posts: 2,609
Likes: 0
From: somerset KY
oh, heres a real easy mod- i removed a dead cat from the driveway earier LOL. all joking aside, when i pulled out of shop from removing cat i floored it and all the built up soot blew out and i couldnt see the muffler shop, literally