Installing Exhaust System... HELP
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This is a discussion on Installing Exhaust System... HELP within the New Member Hangout forums, part of the Community - Meet other Enthusiasts category; I have an 02 WRX. I just got an HKS Hi Power exhaust system from a friend and a 3" ...

  1. #1
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    Installing Exhaust System... HELP

    I have an 02 WRX. I just got an HKS Hi Power exhaust system from a friend and a 3" test pipe. Can I install this with the stock downpipe or will I have to buy a downpipe? Also how many exhaust gaskets should I order?

    Thanks for the help.

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    Registered User G4ORCE's Avatar
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    if ye searches for answers using the search button ye will find...
    I do not think it will line up since the DP tapers to 2.5 in and the test pipe is 3"

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    Do I also have to get a new uppipe?

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    Registered User Micah's Avatar
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    Micahm if you're such a wise guy, why can't you just answer my question?

    It'll only take a few seconds for someone who knows.

    Not to be rude, but I'm at work and I really can't be on here in the first place. Could you just help me out.

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    I dont think the stock DP is 3 inches. The easiest way to fix this would be to take it to a local exhaust shop and have them just install a reducer so it will work.

    Either that or wait until you can get a downpipe and install them all at the same time, but if you dont plan on getting a downpipe just get an exhaust shop to fix you help. Heck you should be able to get a 3 to a 2.5 reducer at most part stores. Not really the most recommended way but it should work.
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  8. #7
    Registered User kiger0183's Avatar
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    Quote Originally Posted by persian prince View Post
    Do I also have to get a new uppipe?
    you do not need to get a new uppipe since it's on the other side of the turbo. It is recommended for performance though! (Be careful, you probably won't pass emissions)
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