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ORY vs Catted Y

This is a discussion on ORY vs Catted Y within the External Engine forums, part of the LSx Technical Help Section category; Is the a real difference between the two (besides the smell)? For example, the QTP Y-Pipe is available in both ...

  1. #1
    GM made me do it!! IT_SS's Avatar
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    ORY vs Catted Y

    Is the a real difference between the two (besides the smell)? For example, the QTP Y-Pipe is available in both variations, but the justifications for the the two are mixed. So what do I have to gain/lose with/with-out cats on a 3inch Y pipe?
    Last edited by IT_SS; 01-21-2009 at 11:41 AM.
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    Life in the Fast lane sunsetorangess's Avatar
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    If you dont have to worrry about emissions go with a Ory, if you do then go with a high flow cat setup.
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    Member 666ws6's Avatar
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    From what I've heard, cats are good for emissions, reduced smell and a little lower noise levels. Without cats; a little more loud, a little more smell and a more tinny sound to the exhaust. As far any gains without cats.... nothing you'd be able to feel or measure.

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    GM made me do it!! IT_SS's Avatar
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    thats what i figured, i was standing behind a friend T/A with an ORY and almost passed out...just wanted to know...

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    Still The Junior Member RedVertTA's Avatar
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    Maybe a 2-4 horsepower difference, not even worth the trouble you could get into, get high flow cats.
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    Member km346's Avatar
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    IMO most exhaust systems sound better with high flow cats. It kills the rasp a lot of exhaust combinations have. And its good for the environment

    But just like anything else its a give or take because its much cheaper to run an ORY.

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    GM made me do it!! IT_SS's Avatar
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    i think i'd rather go with the high flow catts

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    im running ory right now with o2 sims and love it . The Smell just reminds me i got american muscle under the hood . The difference is noise , im runnin an slp loudmouth setup wit my ory and at times gets VERY loud but sounds Crazy

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    MANWHORE TEAM suede's Avatar
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    If your looking QTP, check out their dual Electric cutout version.....well worth it if you like a deep full-out racecar sound and still be able to quiet it down on the hiway..... but on your question the diferences.... yea lil smell, lil better flow, lil louder, but nothing major gain-wise, maybe 3-4 as stated above....

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    Senior Member INMY01TA's Avatar
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    I'd say difference is price and sound. Personally I like the ory sound. I have a very lopey cam (232/236, 111'lsa) and don't notice much gas smell. (I like that too).

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