WRX exhaust 3" to 2.25 adaptor?
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This is a discussion on WRX exhaust 3" to 2.25 adaptor? within the Exterior & Appearance forums, part of the Tech & Modifying & General Repairs category; Hi. I'm new. I've googled high and low for an answer to this question with no avail. I purchased an ...

  1. #1
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    Red face WRX exhaust 3" to 2.25 adaptor?

    Hi. I'm new. I've googled high and low for an answer to this question with no avail. I purchased an HKS catback and want to install it, but my OEM cat is 2.25. The inlet on the exhaust is 3". Where can I find an adapter for this? I don't want to cut and weld anything because I purchased the exhaust full turbo back, which I will install when I can tune the car. For now, a catback will work fine.

    What do I need? Sorry if I overlooked another thread on this subject, I couldn't find anything.

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  3. #2
    Registered User Ingo's Avatar
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    They should have an adapter for this where you bought the exhaust. It's an often used part, readily available. It re-uses the doughnut seal and needs another gasket for the flange side. Should be available from where you got your exhaust.
    You can't have everything - where would you put it?

  4. #3
    Luke Skywalker Mikie13's Avatar
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    There are adapters for the downpipe to stock CBE out there (Rallysportdirect.com) has them...but I haven't seen anything for the other way around...

    ...though I suspect it shouldn't be a problem anyway. I've mated numerous CBEs that were 3in directly to the downpipe without any problems.

    You shouldn't have to cut/weld anything at all.
    The Hawk-Eye Alliance #90|The Blobeye Syndicate #0|The Stink-Eye Mob #0|N.E.R.D. Founding Member & #3
    2012 Lightning Red WRX Sedan Stock...for now Soon to be OpenSource tuned by: Mattypants @ WTF Tuning
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