Engine/Power - EJ25T (STI and 2006+ WRX) Discussions about the USDM 2006+ WRX and WRX STi 2.5 liter turbo flat-four.

Turbo back exhaust.... SAFE????

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Old Dec 19, 2004 | 07:26 AM
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SGOSWRX's Avatar
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From: S.W Florida
Yes you can. But if you get a catless exhaust you will need to do a port job on your turbo because of boost creep issues.

I am running a PDE downpipe (with high flow cat) and a Greddy EVO catback. I get no boost creep with this setup. If you go this route you shouldn't have any issues, but you will give up a little bit of performance over a catless setup.
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