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#1
08-23-2005, 07:25 PM
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Questions on a 94' Chevy
Next feb i will be able to buy my fathers 94 chevy pickup.
It has a 5.7L and I was wondering if taking the cat off these trucks will ruin the mileage or something bc i want to put dual exhaust on it but i want to take the cat off so it sounds better. can someone answer me soon thanks.
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1998 Chevy Cavalier 2.2/ K&N/ Ractive muffler 1994 Chevy s10 thrush welded muffler 
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#2
08-24-2005, 08:49 AM
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Re: Questions on a 94' Chevy
I would keep the cats (Especialy if you want to pass emissions) and put either a straight through muffler, flowmaster 40 series, or straight pipes after the cat. I've heard of the valves burning up after a while with no cats for back pressure. Flowmaster has a great deep sound at idle and loud on acceleration. They sell dual exhaust kits with their 40 series specifically for our trucks. Not too expensive if i remember right.
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#3
08-24-2005, 10:59 AM
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actually you will get better gas mileage by taking your cat off! And i think it makes it sound way better with it off too! especially with true dual Super 40s! Dont worry about your valves burning up or whatever you will have plenty of back pressure i have never had a problem like that with three of my trucks which have the cat taken off, besides it gets clogged up anyway and causes you problems. The only thing is, your cab will vibrate sometimes with really low tones......
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1988 k 1500 rebuilt 350 bored 60 over and low end torque cam 1990 454 SS true dual flowmasters 1995 Chevy cheyenne 2wd 350- 700r4 tranny crane cam Flow-tech afterburner headers true dual flowmasters airraid intake, throttle body spacer hypertech thermomaster
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#4
08-28-2005, 08:10 PM
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thank you guys for your input, it really helped alot. i think i will take the cat off and put true duals on because there is no other way to do it,
thanks again.
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1998 Chevy Cavalier 2.2/ K&N/ Ractive muffler 1994 Chevy s10 thrush welded muffler
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#5
08-29-2005, 11:00 PM
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Re: Questions on a 94' Chevy
If it was me, I would do the same thing. Only thing is the emissions you will not pass. However, milage per gallon will be better and Power will be better.
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Check out my 1966 Chevelle here:  http://hometown.aol.com/abrucelee1/i...ml1badrat.html Last edited by blue4X4; 09-10-2005 at 12:57 AM.
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#6
09-06-2005, 09:15 AM
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well i am not too concerned with emissions because I live in Michigan and our state aint to bad about emission control. Especially where I live.
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1998 Chevy Cavalier 2.2/ K&N/ Ractive muffler 1994 Chevy s10 thrush welded muffler
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#7
09-06-2005, 09:17 AM
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well i am not too concerned with emissions because I live in Michigan and our state aint to bad about emission control. Especially where I live.
__________________
1998 Chevy Cavalier 2.2/ K&N/ Ractive muffler 1994 Chevy s10 thrush welded muffler
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