Turbo-back exhaust
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This is a discussion on Turbo-back exhaust within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; If I wanted to do a catless turbo-back exhaust... 1) Would a tune be required? 2) What material should I ...

  1. #1
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    Turbo-back exhaust

    If I wanted to do a catless turbo-back exhaust...

    1) Would a tune be required?
    2) What material should I go with?

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  3. #2
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    1. Yes, a tune is needed for pretty much any power mod on these cars.
    2. What do you mean material?

    You don't need a full TBE, just get a DP, the catback part is just a noise maker and provides little to no gains.

    Also... do a search.. there is all of this info all over the place.
    2012 WRX: TurboXS DP, AEM CAI, TP stage 2 tune

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    O crap...a tuner is like 600 dollars...and I meant like the material of the pipe. I was thinking aluminum.
    And as for the catless part, I just read it can cause boost creep because of lack of back pressure

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    Quote Originally Posted by MrManny View Post
    O crap...a tuner is like 600 dollars...and I meant like the material of the pipe. I was thinking aluminum.
    And as for the catless part, I just read it can cause boost creep because of lack of back pressure
    Yeah, but I have a DP and CAI and I don't have any boost creep issues. I wouldn't worry about that with just the DP. Material... well SS is what most people get, but like I said, a CBE is a noise maker ... and about a 800-1500.00 noise maker. Hardly worth it IMO anyway. You can get a tune with Eric at Torqued Performance, he has OTS maps, but he tweaks them and it's 80.00. Just getting a tune alone on a stock WRX will add quite a bit of power though if you just wanted to get more bang for your buck.
    2012 WRX: TurboXS DP, AEM CAI, TP stage 2 tune

  6. #5
    Registered User 11blackwrx's Avatar
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    I Support ClubWRX
    Most exhausts are stainless steel
    2011 Subaru WRX Premium
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  7. #6
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    Ok thanks and btw I don't have to worry about the catback, my car came with it when I bought it so I guess I just need that downpipe.

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