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#1
02-21-2005, 09:23 PM
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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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#2
02-21-2005, 09:35 PM
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It's very illegal, and very very annoying.
__________________
*Under Construction - New sig to debut*
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#3
02-21-2005, 11:47 PM
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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 Poly engine/trans/control arm bushings Self built and self programmed progressive methanol injection system
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#4
02-22-2005, 02:50 AM
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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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#5
03-01-2005, 10:31 PM
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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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#6
03-01-2005, 10:32 PM
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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  1997 Geo Prizm -- 301,000 miles 2000 Honda Accord -- 225,000 miles 2004 GMC Yukon XL -- 223,000 miles 1987 Jeep Comanche -- 116,000 miles 
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#7
03-02-2005, 08:56 AM
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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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#8
03-02-2005, 09:07 AM
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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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#9
03-02-2005, 10:35 AM
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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.
__________________
1998 ECSB Z71
Whelen LED's Kenwood 2-way "BIG 3" 2500+ watt audio 
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#10
03-05-2005, 06:28 PM
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mine didnt come on
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#11
03-06-2005, 05:24 PM
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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.
__________________
 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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