New pistons in 2011 STi
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This is a discussion on New pistons in 2011 STi within the Engine Modifications forums, part of the Tech & Modifying & General Repairs category; So I'm going to do a compression test tomorrow and see what's really going on there. Ultimately I think the ...

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    Registered User Mike193's Avatar
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    New pistons in 2011 STi

    So I'm going to do a compression test tomorrow and see what's really going on there. Ultimately I think the ringlands are shot. I've read the only thing holding the STi back under about 450hp is the pistons. I'm not too concerned about noise differences from the stock pistons. I'd actually prefer a sound change. I'm just looking to see what are the best out there and what they would cost, and what other comparable products cost. Any advice would be great, thank you!
    Last edited by Mike193; 07-09-2013 at 12:02 AM.

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    Registered User MOTION's Avatar
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    My CP's are doing fine so far with 16k+ miles on them under a good bit of boost.

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    zax
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    Yes the pistons and oiling are the weak points of the EJ257 motor.

    Well actually, any EJ motor.
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    Registered User Mike193's Avatar
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    Quote Originally Posted by zax View Post
    Yes the pistons and oiling are the weak points of the EJ257 motor.

    Well actually, any EJ motor.
    Any suggestions on upgraded components?

    Also, what will this cost me roughly?

  6. #5
    Registered User MOTION's Avatar
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    Quote Originally Posted by Mike193 View Post
    Any suggestions on upgraded components?

    Also, what will this cost me roughly?
    Believe I spent around 700 for piston's only.

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