06+ STS Northstar ECM repin to 07-08, new carrer and trans install
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Northstar Engines and System Technical Discussion Discussion, 06+ STS Northstar ECM repin to 07-08, new carrer and trans install in Cadillac Engine Technical Discussion; Hello Friends. I posted something a few months ago on here that talked about changing my carrier from a 2.73 ...
  1. #1
    K STS's Avatar
    K STS is offline Banned
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    06+ STS Northstar ECM repin to 07-08, new carrer and trans install

    Hello Friends.

    I posted something a few months ago on here that talked about changing my carrier from a 2.73 to a 3.42. I have a 2006 Northstar 1SE

    After spending the last 3 month researching, here is what I came up with.

    I am going to swap my 5 speed 2006 trans for a 6 speed trans. I am going to swap my 2.73 carrier for a 3.42 carrier.

    Since the ECM is locked, I am going to try to repin a 2007 STS ECM, which you can use tuners with.

    Any advice or suggestions? I have sourced the trans and carrier - all I need now is some info on repining my ECM and swaping it with a 2007 ECM.

    P.S. Don't move this to the STS forum - I've already talked to people there.

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  3. #2
    AJxtcman's Avatar
    AJxtcman is offline Cadillac Owners Connoisseur
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    Re: 06+ STS Northstar ECM repin to 07-08, new carrer and trans install

    Move it to the tuning section.

    I will tell you that it is going to cost you BIG $$$$$$ to make it work

    I know a secret.

    Hey when the car won't run call me

  4. #3
    jwwkz is offline Banned
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    Re: 06+ STS Northstar ECM repin to 07-08, new carrer and trans install

    What is the secret

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