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Old 03-06-2003, 09:11 PM   #1
imprezey
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Default looking to get a hi-flow cat for GC8

where would i get one of those catco or dynamax hi-flow cats for my MY01 RS? these would mate up to a set of borlas or even the stock headers nicely right? also what is the part number/description i should get? thanks.
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Old 03-07-2003, 12:19 AM   #2
imprezawd
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I want a cat as well, but dont want to pay the $$$$
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Old 03-07-2003, 09:22 AM   #3
Crimson
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There is a place in Montreal that sells SS high flow cats for around $100.00 Cdn. I will try and get hold of my buddy that works for a race team there and get more info for you.
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Old 03-07-2003, 10:19 AM   #4
imprezey
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sweet thanks. i saw summitracing has them but which one is for our car?
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Old 03-07-2003, 11:23 AM   #5
DanzBorin
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you have to get a universal 2.25 or 2.5" and have the piping fabricated...
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Old 03-07-2003, 02:20 PM   #6
BOY
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Danz, actually the question is a bit more than that... Catco has a bazillion (<-- ) different layouts of their cats. The one I chose was the 14" long dual O2 sensor fitting cat and its available in 2.25" and 2.5". This way you have lost of options on future mounting of O2 sensors
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Old 03-07-2003, 03:09 PM   #7
DanzBorin
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kewl... did you need additional ones for the emanage?
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Old 03-07-2003, 03:12 PM   #8
BOY
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additional O2 sensors, nope. E-Manage doesn't have any A/F correction... in fact it says in all the documentation "make sure you have an adequate A/F ratio and EGT gauge..." . However, since the cat was installed I've gone from the stock "header" to a custom y-pipe, to a complete custom 4-2-1, to a custom turbo 4-2-uppipe and the cat has moved each time.
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Old 03-07-2003, 05:16 PM   #9
SubyBean
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Quote:
Originally posted by BOY
additional O2 sensors, nope. E-Manage doesn't have any A/F correction... in fact it says in all the documentation "make sure you have an adequate A/F ratio and EGT gauge..." . However, since the cat was installed I've gone from the stock "header" to a custom y-pipe, to a complete custom 4-2-1, to a custom turbo 4-2-uppipe and the cat has moved each time.
my god boy you have been busy since the last time we talked when i actually lived there in dallas man look forward to seeing ya at MSR ttyl

Brian
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Old 03-07-2003, 05:18 PM   #10
BOY
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Hopefully I'll have it tuned a little better and have the "new" ACT clutch in ... Should be scaring/beating the stage 0-1 WRXs once its tuned since I was taking the stockers N/A
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Old 03-07-2003, 07:41 PM   #11
SubyBean
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damn bill bout time you get that new clutch in your clutch was slipping way back in september of 02 hehe the last meet i went to in dallas when i used to live there

Brian
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Old 03-08-2003, 09:18 AM   #12
BOY
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You should see it now with 6psi on top of everything else

BTW, remember the custom header? Check this out (more pics at http://www.turbometrics.com/images/BOY/ ):


Notice the single Catco high flow cat... trying to keep it on topic
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Old 03-08-2003, 12:47 PM   #13
imprezey
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did you get the catco cat from summitracing? do you know what the specs of it are? nice looking header by the way.. how much did it cost to have it done?
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Old 03-08-2003, 03:02 PM   #14
joefocker20
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Just buy a Random Tech, it'll flow better than buying a universal cat and having crush bent pipe welded to it.
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Old 03-08-2003, 03:37 PM   #15
DanzBorin
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random tech = too much $$$
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Old 03-08-2003, 03:38 PM   #16
Dewey 8d
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My best friend is a mechanic and he says they dont really do sheet. I don't have a dyno, so I wouldn't be able to tell you.
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Old 03-08-2003, 03:39 PM   #17
joefocker20
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I think your friend is wrong
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Old 03-09-2003, 03:44 AM   #18
sti27
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Default Random high flow cat

I'm sorry if I hurt anyones feelings but this place is all about opinions right? So I'll state mine.

Dec.18th (2001) I purchased a full exhaust system(Borla headers, Random cat and Stromung cat back. I received everything on Jan 4th(because of holidays)and had it installed the following week at a professional subaru shop down from my house.

Everything was fine till about a week and a half later when I started hearing the awful rattling coming from under the car. I come to find out that the insides of the cat blew out and was rattling in the cat (soon made it through to the muffler, then I got it out). I called up Cobb Tuning and Josh was really cool about everything and said he'll send me a new on.

Ok recap: Spent $1300.00 for full exhaust
Had small prob but was going to be fixed (No biggy right)

Well i got the new cat and again, a week later blows out AGAIN.
Now I'm alittle more pissed. Unfortunetly Josh from Cobb couldnt do might this time (I dont blame him, He didnt make the CRAP). So I call Random Tech about the problem and I get this guy named Trey, who was rude, tried to blame me saying I problely hit a speed bump or something, and had very poor customer service. I think I would know if I hit something(ther was no scrapes on the cat).

Now dont confuse Trey (Random tech) with Trey (Cobb tuning).
Cobb=cool Random tech=Not cool

So I count my loses, hollowed out the cat as so it dont rattle and its on the car today. It has more power than before but is much louder(piss off the neighbors, hehe).

Sorry, I dont mean to trash or ramble, just a warning from my experience.

Thanks for listening
Sti27
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Old 03-09-2003, 03:46 AM   #19
joefocker20
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Maybe youre cars running a tad too rich, that can cause a cat to fail..
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Old 03-09-2003, 03:51 AM   #20
sti27
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How about the stock cats. They are fine and have no trouble. I just put my high-flow back on today (had to switch to stock for inspection).If I were running richor lean, wouldn't it affect the stock cats? (I dont know?)
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Old 03-09-2003, 03:54 AM   #21
joefocker20
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You also have two of them when the stockers are on, and I think my stock ones are starting to rattle. I'm going to rule out my Exhaust with new hangers. Also, when you place a high flowcat on, youre increasing airflow, so youre ECU may be overcompensating with too much fuel. Or maybe Random Techs Cats are junk Get a test pipe and stick in there, lol
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Old 03-09-2003, 04:07 AM   #22
sti27
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Default I see says the blind man who buys junky cats

Ok you bring a very good point, but $350 for a product should last. No one knows but the Impreza Gods.
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Old 03-10-2003, 09:23 AM   #23
BOY
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imprezey, the cat was bought at Summit racing and IIRC its the 14" dual O2 sensor cat (one in front, one behind the catalyst).

As for the Random Tech horror storries, it sux but I cannot justify spending that much on a cat... bolt in or not. Now my catco hasn't been problem free, I've basically killed the first row of catalyst, I've had some minor cracking, but I can by 3 catcos for the price of 1 RT. Considering the abuse I've put it through (rewelding it 3 or 4 times into place) I'd say its holding up very well.
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Old 03-10-2003, 11:19 AM   #24
imprezey
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thanks for the info.
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Old 03-10-2003, 01:46 PM   #25
Crimson
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Here is the web page for the Store in Montreal that sells high flow cat's. Store Web page
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