Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

JDM Godspeed downpipe to USDM exhaust fitment?

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Old 12-11-2006, 12:45 AM
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Question JDM Godspeed downpipe to USDM exhaust fitment?

I am getting a Godspeed JDM Spec downpipe/midpipe which is a one piece pipe replacing the stock downpipe, midpipe and both cats. Will I be able to connect a USDM catback exhaust system to this and have it fit? I know there are some length differences between JDM/USDM exhaust components, but I've read that after the midpipe/last cat, the length of the rear pipe, muffler, etc. is equal in length. Can anyone clarify this?
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Old 12-11-2006, 04:35 PM
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Updated question.

So from what I've read, I guess a USDM catback is slightly shorter than a JDM catback because of the downpipe length differences? So what if I had a shop make me a small bolt on pipe adapter/lengthener to bridge the gap between the JDM downpipe and the USDM catback? That should allow me to run the JDM downpipe with either JDM or USDM catbacks, correct? Does anyone know if this would work?
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