02-21-2005, 09:23 PM
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#1
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AF Newbie
Join Date: Oct 2004
Location: Austin, Texas
Posts: 18
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gut the cat?
Would it be hard to gut the cat, or is it a task that needs professional work? Also, would I notice good gains and would there be any difference in sound?
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02-21-2005, 09:35 PM
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#2
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AF Fanatic
Join Date: Jan 2003
Location: Huntsville/Houston, Texas
Posts: 7,785
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It's very illegal, and very very annoying.
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*Under Construction - New sig to debut*
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02-21-2005, 11:47 PM
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#3
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AF Enthusiast
Join Date: Dec 2004
Location: Shellsburg, Iowa
Posts: 2,966
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Re: gut the cat?
THAT IS ILLEGAL, DO NOT DO IT.
If you're just curious how to do it (wink-wink), take an air chisel with a long bit on it and go straight through the cat. I've also heard of people* who take a pipe and shove it through.
*= People may not exist, I saw nothing.
__________________
'04 Cavalier coupe M/T 2.2 Ecotec
Supercharged 14 PSI boost, charge air cooler, 42# injectors
Tuned with HP Tuners
When you buy something... a bottle of pop for example, who gets the profit from it and what do they do with it? Maybe your money's going to groups that want to hurt you. I think everyone should do a search for things they purchase regularly "____ supports". Might just find a company you won't buy stuff from anymore.
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02-22-2005, 02:50 AM
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#4
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AF Newbie
Join Date: Oct 2004
Location: Hamilton
Posts: 29
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Re: gut the cat?
If thats what you want to do then done wreck expensive factory cats. go buy some high flow performance ones
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03-01-2005, 10:31 PM
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#5
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AF Newbie
Join Date: Jan 2005
Location: oklahoma city, Oklahoma
Posts: 2
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cats
i just cut mine all the way out and welded new pipe in and it made a big diffrence
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03-01-2005, 10:32 PM
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#6
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AF Enthusiast
Join Date: May 2004
Location: Bicknell, Indiana
Posts: 1,079
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Re: gut the cat?
Mine was cut open with a cutting torch and gutted and welded back in....sounds great!
__________________
Matthew Brough
1998 Chevrolet Venture -- 104,000 miles
1988 Chevrolet Silverado -- 156,000 miles
1996 Chevrolet Cheyenne -- 107,000 miles
My 96 and 88 before the resto.
My 88 after the Restoration.
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03-02-2005, 08:56 AM
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#7
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AF Newbie
Join Date: Feb 2005
Location: West, Texas
Posts: 7
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99 Silverado and I cut out my cats, gutted them and then welded them back in. It was pretty easy and didnt cost me any cash. The truck sounded a little throatier but not much. Small increase in performance.
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03-02-2005, 09:07 AM
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#8
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AF Regular
Join Date: Oct 2003
Location: waco, Texas
Posts: 127
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Re: gut the cat?
gutting the cats or cutting them out all together....wont that cause the check engine light to come on or any other problems with the computer?
__________________
2002 Z71 ext. cab LT trim
badgeless
Rhino spray in liner
Stock for now, other than free mods
future plans (how far in the future depends on wallet)
Toyo Open Country M/T's
air intake (not sure which yet)
exhaust system (seems that Magna flow is the ticket)
Nelson tune
3 or 4 inch lift
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03-02-2005, 10:35 AM
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#9
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AF Enthusiast
Join Date: Sep 2003
Location: Preston, Georgia
Posts: 2,154
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Re: gut the cat?
If you have 02 sensors behind the cat, yes it will. YOu can get some simulators off of e-bay to plug in tricking the computer into thinking everythings fine.
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1998 ECSB Z71
Whelen LED's
Kenwood 2-way
"BIG 3"
2500+ watt audio
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03-05-2005, 06:28 PM
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#10
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AF Newbie
Join Date: Jan 2005
Location: oklahoma city, Oklahoma
Posts: 2
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mine didnt come on
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03-06-2005, 05:24 PM
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#11
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AF Enthusiast
Join Date: Nov 2003
Location: Vancouver, Washington
Posts: 144
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Re: gut the cat?
Do you lose any low end power? I want to do this, but am afraid it will screw up low end torque, then I'm out 2 expensive cats.
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2001 Silverado Crew Cab 2500 HD - 8.1 - Allison 6" RCD Lift with 35" BFG Mud Terrains Airaid Intake - 4" Magnaflow Exhaust - Hypertech Programmer
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