Thread: Is a Imperformance catalyctic converteror really worth it?Im.thim iI

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  1. #1 Is a Imperformance catalyctic converteror really worth it?Im.thim iI 
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    I'm thinking upgrading my cat, is it worth it? What's a good choice?
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  2. #2 Re: Is a Imperformance catalyctic converteror really worth it?Im.thim iI 
    SE Level Member Fireworks's Avatar
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    Check out this thread for safe mods: http://www.grandprixforums.net/safel...car-17482.html

    It also tells you what is a good idea and what isn't worth it.
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  3. #3 Re: Is a Imperformance catalyctic converteror really worth it?Im.thim iI 
    GXP Level Member ctracer's Avatar
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    depends.
    is your cat clogged?
    if not, dont worry about it.
    07 Black GXP.
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  4. #4 Re: Is a Imperformance catalyctic converteror really worth it?Im.thim iI 
    GTX Level Member acidcrashdburnd's Avatar
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    A high flow cat will set the P0420 code for the rear o2. And I think the factory cat is good for 350-400 whp
    2005 GPGT- Top Swapped Click me! 15.5 @109
    2002 GPGT- slow and stock
    1993 Oldmobile 88
    - exploded the diff @158k
    GPF Resident Flowmaster Troll
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  5. #5 Re: Is a Imperformance catalyctic converteror really worth it?Im.thim iI 
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    Nice appreciate it!
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  6. #6 Re: Is a Imperformance catalyctic converteror really worth it?Im.thim iI 
    Turbo is the way to go. BillBoost37's Avatar
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    Quote Originally Posted by acidcrashdburnd View Post
    A high flow cat will set the P0420 code for the rear o2. And I think the factory cat is good for 350-400 whp
    Not all of them and it depends on the year of the car. 97-99 you coudl do almost anything you wanted and the light wouldn't set. Newer it's common to set it.
    I drink..so consider that when reading my posts.

    2010 Audi A6 Dual IC's
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