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This is a discussion on DIY Stage 2+ (Downpipe, Uppipe, TMIC, EBCS, Ram Intake, Wastegate Blockoff, EWG) within the Engine Performance forums, part of the Tutorials & DIY category; Originally Posted by FMS Thats correct. The Cobb AP only has OTS maps for Catted downpipes. With a catless downpipe ...

  1. #61
    Registered User Heide264's Avatar
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    Quote Originally Posted by FMS View Post
    Thats correct. The Cobb AP only has OTS maps for Catted downpipes. With a catless downpipe you can run into over boosting problems quite easy.
    +1. The boost control between a catted and uncatted is fairly substantial. You may be getting some pretty severe 'boost creep' without the cat as well. In that case... See the EWG part of the install =)
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    balls. looks like ill be finding one with a cat then haha. i dont know enough about tuning the EWG and all to get a catless.
    CA | MI
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    need of a drop and downpipe

  3. #63
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    problem is.... every DP with a cat is basically double the price.....
    CA | MI
    2012 OBP Sedan in desperate
    need of a drop and downpipe

  4. #64
    FMS
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    Quote Originally Posted by tee wrx View Post
    balls. looks like ill be finding one with a cat then haha. i dont know enough about tuning the EWG and all to get a catless.
    Get someone to tune the car for you EWG's can be a lot of fun.
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  5. #65
    Registered User tgtrefz's Avatar
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    I'm running catless dp with stock catback and have no creep issues. I recommend ewg though. That's what i'll be doing.

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