 TWO Cats?, WHY!?!? |
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 Oct 16, 2006 - 10:23 PM
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Enthusiast  Joined Sep 1, '06 From Michigan Currently Offline Reputation: 0 (0%)  |
I took my car to the muffler shop for a quote on how much my stuff was going to run me to get isntalled, and I have 2 catylitic converters! WHY!!?!?! one is right under the manifold, between the downpipe and the manfiold (or looks this way) can anybody explain why this would be, and if this is restricting to airflow or not?
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Oct 16, 2006 - 10:30 PM
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 Enthusiast Joined Jun 13, '05 From Poughkeepsie, NY Currently Offline Reputation: 2 (100%) |
believe cali spec celicas have/had 2 cats.
--------------------  Kawi Love |
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Oct 16, 2006 - 10:47 PM
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 Enthusiast Joined Mar 3, '04 From Portsmouth, RI Currently Offline Reputation: 33 (100%) |
I'm guessing you have a 94-95 because 96+ only have one cat because emissions are controlled better with the OBDII (I believe, thats the reason). as far as I know the extra cat doesn't hurt your airflow any more than the Celicas with only one cat.
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Oct 16, 2006 - 10:49 PM
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Enthusiast Joined Sep 1, '06 From Michigan Currently Offline Reputation: 0 (0%) |
so with a performance cat, new header, entire exhaust expanded .25 of an inch, ditching the resonator, will i see any difference?
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Oct 16, 2006 - 10:52 PM
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 Enthusiast Joined Mar 8, '04 From Newport, RI Currently Offline Reputation: 63 (99%) |
cat info
GT 94 fed has 1 cat 94 cali has 2 95 + has 2 ST 94-95 are all cali and have 2 96-97 have 1 do you have an ST or a GT ? This post has been edited by Batman722: Oct 16, 2006 - 10:51 PM -------------------- |
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Oct 16, 2006 - 10:53 PM
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Enthusiast Joined Sep 1, '06 From Michigan Currently Offline Reputation: 0 (0%) |
7afe. St
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Oct 17, 2006 - 7:14 AM
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 Enthusiast Joined Mar 2, '04 From Louisiana, USA Currently Offline Reputation: 2 (100%) |
My '95 ST is not a CA car and had 2 converters.
I just checked my BGB, you're right. New bit of information I had not really cared to look into until now. This post has been edited by S_C_M: Oct 17, 2006 - 4:31 PM |
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Oct 17, 2006 - 7:17 AM
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Enthusiast Joined Mar 8, '04 From Newport, RI Currently Offline Reputation: 63 (99%) |
QUOTE(S_C_M @ Oct 17, 2006 - 8:14 AM) [snapback]492613[/snapback] My '95 ST is not a CA car and had 2 converters. all 94-97 STs are Cali spec... 
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Oct 18, 2006 - 4:51 PM
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 Enthusiast Joined May 12, '06 From Wilmington, NC Currently Offline Reputation: 45 (100%) |
QUOTE(n1ckz0r @ Oct 16, 2006 - 8:49 PM) [snapback]492515[/snapback] so with a performance cat, new header, entire exhaust expanded .25 of an inch, ditching the resonator, will i see any difference? you'd probably see a difference with any one of those. yeah, my 94 GT cali spec has 2. I wonder which would give more performance and less emissions: to swap out the two OBDI converters for one OBDII converter, or two just use two OBDI converters? --------------------  94 GT - Sold -------- 69 Pontiac Lemans - Sold 88 Alltrac - Sold ---- 04 WRX - Sold 00 GT-S - Sold ------ 91 Miata - project/drift car 95 GT - Sold -------- 96 GT - New Daily Drive |
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Oct 20, 2006 - 2:17 AM
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 Enthusiast Joined Feb 17, '04 From michigan Currently Offline Reputation: 0 (0%) |
is teh cat located rigth after the exhaust manifold for a 94 gt?
-------------------- 94 celica GT
92 honda prelude si<h22 swap> 93 eagle talon TSI <4G63 powered>i wish it was AWD 90 mitsu eclipse GSX<4G63 powered>SOLD LEXUS IS300< im looking for one! |
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Oct 20, 2006 - 7:25 AM
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Enthusiast Joined Mar 8, '04 From Newport, RI Currently Offline Reputation: 63 (99%) |
QUOTE(lazzyboy121 @ Oct 20, 2006 - 3:17 AM) [snapback]494029[/snapback] is teh cat located rigth after the exhaust manifold for a 94 gt? yes. and if you have a cali spec, there is another under the car. -------------------- |
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Oct 20, 2006 - 10:16 AM
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Enthusiast Joined Sep 1, '06 From Michigan Currently Offline Reputation: 0 (0%) |
taking both out and putting an ebay one in!
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Oct 20, 2006 - 3:19 PM
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 Enthusiast Joined Jan 10, '06 From Mozambique, Africa Currently Offline Reputation: 8 (100%) |
Cats? what cats? he, he. We don't need no stinking cats!
 Well, at least not yet. --------------------  "Remember, amateurs built the ark and professionals built the Titanic. But revolutionaries built the Celica!"- Me |
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Oct 20, 2006 - 3:54 PM
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 Enthusiast Joined Feb 8, '04 From Thornton, CO. Currently Offline Reputation: 1 (100%) |
Yeah what happens if you just put in a universal cat in place of the two cats on a ST? (legal wise... can the cops check to see how many cats its supposed to have?)
This post has been edited by FreddyTheOthaMeat: Oct 20, 2006 - 3:54 PM -------------------- Fred
"...Armed with backbone and busted zoo gates, promising you from the bottom of my harmonica pocket - FOREVER - you will never have another lonely holiday..."  |
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Oct 20, 2006 - 4:38 PM
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 Enthusiast Joined Apr 14, '06 From Vancouver, WA Currently Offline Reputation: 0 (0%) |
Yup, I've owned a 96 Camry and it had two, and my 96 Celica ST has the same setup. Essentially you could remove the one under the car, but the top one that is part of the manifold is gonna turn on your CEL if you don't reconnect everything that was on the old manifold. You won't get pulled over for anything and if you're CEL isn't on then you'll pass emissions. I did get pulled over in my Camry once for my exhaust being too loud though lol.
Camry had stock manifold with 2.5 inch exhaust (manifold back), high-flow magniflow cat under car, and magniflow muffler. 
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Oct 21, 2006 - 12:59 PM
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Enthusiast Joined Sep 1, '06 From Michigan Currently Offline Reputation: 0 (0%) |
CEL?
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Oct 21, 2006 - 1:15 PM
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Enthusiast Joined Mar 11, '06 From Way South Chicago Currently Offline Reputation: 0 (0%) |
Check Engine Light
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Oct 23, 2006 - 11:48 AM
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 Enthusiast Joined Sep 6, '04 From oakdale Mn Currently Offline Reputation: 0 (0%) |
i call the second cat (the smaller one) the Kitten haha cheezy joke
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