 Gutting Cats, good idea?? |
 Dec 11, 2003 - 12:00 AM
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Enthusiast  Joined Apr 14, '03 Currently Offline Reputation: 0 (0%)  |
Well since theres no real High-flow cat around I keep hearing of "gutting your cat." So im not a good mechanic but i can for sure take it off......so what would I do next take a screw driver and go to town
 no really I have no clue.Lastly will my check engine light come on or something stupid like that? |
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Dec 11, 2003 - 12:32 AM
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 Enthusiast Joined Nov 15, '02 From Corona & Vallejo, CA Currently Offline Reputation: 0 (0%) |
No your check engine light won't go on... but I wouldn't recommend gutting your cat. For starters, you won't gain anything out of it (unless you're boosting of course). If you really want to be free flowing, just go down to the muffler shop and ask them to make you a test pipe. They most likely won't install it since it's illegal to remove the cat, but I'm sure they won't have any problems making one for you. |
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Dec 11, 2003 - 12:39 AM
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 Enthusiast Joined Sep 23, '03 From Miami,FL Currently Offline Reputation: 0 (0%) |
will that give you any sort of increase in power or torque?
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Dec 11, 2003 - 12:49 AM
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Enthusiast Joined Apr 14, '03 Currently Offline Reputation: 0 (0%) |
get a test pipe, and then when my emissions comes up put on the cat?
Sorry about the wrong forum, lost track of were I was
This post has been edited by 5sfeTurbo: Dec 11, 2003 - 12:50 AM |
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Dec 11, 2003 - 12:53 AM
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Enthusiast Joined Sep 9, '02 From Scranton, Pa Currently Offline Reputation: 7 (100%) |
yes, unless u live in a place that isnt very strict.. my toyota dealer gutted my car for me so boost would be more responsive.. they also killed my EGR system but kept the visuals, that put the sticker on my window!!  but it actually gut it, just take it off, long screwdriver or metal rod of some type and hammer it through the cat. knock all the honey comb out and reinstall.. all better, note: exhaust will be louder
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Dec 11, 2003 - 1:08 AM
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Enthusiast Joined Nov 15, '02 From Corona & Vallejo, CA Currently Offline Reputation: 0 (0%) |
Like I said in my previous post, NO... unless you have a high-end motor or boosting... Trust me... I've done it... ran the track before and after I gutted... and ran the same times on the 1/4 mile. But if you wanna do it anyways (and regret it later like I did), just take a power drill to it. It'll take you 3 to 5 minutes to gut it out... |
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Dec 11, 2003 - 1:13 AM
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 Enthusiast Joined Aug 30, '02 From Anaheim, CA Currently Offline Reputation: 0 (0%) |
there was a post not to long about about using a corolla high flow cat.
i think a few people have gotten those to work. -------------------- 1994 Celica GT4 WRC Edition
@gt4.wrc on Instagram |
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Dec 11, 2003 - 1:46 AM
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Enthusiast Joined Nov 15, '02 From Corona & Vallejo, CA Currently Offline Reputation: 0 (0%) |
Technically, one can use any high flow cat. If the cat is too long or short, just take the cat to a muffler shop and have them reweld the flanges... So if the Corolla is to long or short... it doesn't matter... it can still be used. 
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Dec 12, 2003 - 3:18 PM
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 Enthusiast Joined Apr 15, '03 From San Jose, CA, USA Currently Offline Reputation: 1 (100%) |
I heard there is no reason to gut the cat unless your boosting, and even so if your boosting past about the 400hp mark. No need to gut the cat at all, just buy a high flow one, and get custom exhaust all the way from the down pipe back and have them pop that in there.
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