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  1. 10-20-2008 01:51 PM #1
    MeteorS4Ti
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    Downpipe vs High-Flow Cat....

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    What is the difference between the two? I know that Downpipes are illegal and are High-Flow Cats legal then? I'd like to do one of the two, but whatever is legal :D
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  2. 10-20-2008 01:52 PM #2
    Quattro
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    Re: Downpipe vs High-Flow Cat....

    I am running a high flow cat and love it, have not had a problem since I have installed.
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  3. 10-20-2008 02:13 PM #3
    MeteorS4Ti
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    Re: Downpipe vs High-Flow Cat....

    Quote Originally Posted by Quattro View Post
    I am running a high flow cat and love it, have not had a problem since I have installed.
    Do you have a link to where you bought yours? Also my friend has a Electric Cutout in his car,has anyone done that do theirs?
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  4. 10-20-2008 02:16 PM #4
    fusionx
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    Re: Downpipe vs High-Flow Cat....

    In CA both are illegal, modifying your cat is illegal here. Soo im not sure what the deal is in florida
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  5. 10-20-2008 02:50 PM #5
    aaaudiprotein
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    Re: Downpipe vs High-Flow Cat....

    Quote Originally Posted by RedAudiaA408 View Post
    What is the difference between the two? I know that Downpipes are illegal and are High-Flow Cats legal then? I'd like to do one of the two, but whatever is legal :D
    i think u meant Testpipe (not Downpipe).
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  6. 10-20-2008 04:31 PM #6
    Mike@PureMS
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    Re: Downpipe vs High-Flow Cat....

    On the 2.0T, the downpipe and the cat are two totally separate pieces.
    You can have an aftermarket cat with the stock downpipe, or a stock downpipe with an aftermarket cat. Two completely independent pieces.
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  7. 10-20-2008 05:01 PM #7
    Quattro
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    Re: Downpipe vs High-Flow Cat....

    not true, the high flow cat is legal in ca.

    I'll send you a pm shortly op
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  8. 10-20-2008 05:02 PM #8
    MeteorS4Ti
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    Re: Downpipe vs High-Flow Cat....

    What about this?

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  9. 10-20-2008 05:27 PM #9
    fusionx
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    Re: Downpipe vs High-Flow Cat....

    Quote Originally Posted by Quattro View Post
    not true, the high flow cat is legal in ca.

    I'll send you a pm shortly op
    modifying or replacing a cat is illegal unless approved by whoever does that shit for the government
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  10. 10-20-2008 05:42 PM #10
    aaaudiprotein
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    Re: Downpipe vs High-Flow Cat....

    Quote Originally Posted by Mike@PureMS View Post
    On the 2.0T, the downpipe and the cat are two totally separate pieces.
    You can have an aftermarket cat with the stock downpipe, or a stock downpipe with an aftermarket cat. Two completely independent pieces.
    That's what i meant. DP won't cause any bad emissions.
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  12. 10-20-2008 07:10 PM #11
    supamannn99
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    Re: Downpipe vs High-Flow Cat....

    http://www.audizine.com/forum/showthread.php?t=185926

    lol so many testpipe threads
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  13. 10-20-2008 08:12 PM #12
    jimmya4
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    Re: Downpipe vs High-Flow Cat....

    In California you can not even put a sticker on your cat everything is illegal here. if you live in california, it is pointless to spend 300 dollars more on a racing cat unless you can pass emissions with it. most of us will not be getting smogged any time soon though. just put the cat back on if you are. 70 dollar test pipe and more gains, or 450 dollar high flow cat with less gains and still just as illegal.........
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  14. 10-20-2008 09:29 PM #13
    supamannn99
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    Re: Downpipe vs High-Flow Cat....

    cheap 70 dollar hollow pipe with max gains sounds the best. do it.
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