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    • 991.2 ECU cracked - SDI21 flash tuning available for 2017 on Porsche 911 9A2B6 3.0, 991.2 Turbo, and 982 718 Cayman 9A2B4 2.0 and 2.5

      This is huge news but lets tempter expectations until it is actually tested out. Autotuner in Europe claims the Continental/Siemens SDI21 ECU that has been giving Porsche tuners so much trouble has finally been cracked with read and write access.


      Here is what they had to say:

      Quote Originally Posted by Autotuner
      Porsche 991, Cayman, Boxster and Macan with Continental SDI9-10-21 : Boot Read/Write solution now available ! PDX file not required anymore !SDI9 : 991 3.4 - 3.8 - 3.8T
      SDI21.2 : 991.2 3.0T
      SDI21.3 : 991.2 3.8T
      SDI9 : Cayman - Boxster 981 2.7 - 3.4 - 3.8
      SDI21.1 : Cayman - Boxster 718 2.0T
      SDI21.1 : Cayman - Boxster 718 2.5T
      SDI10.2 : Macan 3.0T - 3.6T
      They e-mailed BoostAddict with further details:

      Quote Originally Posted by Autotuner
      No need PDX or FRF file anymore, this is real read.

      Thanks to this update you are now able to get very good results on the :

      PORSCHE 911 991.2 GTS
      ORIGINAL:
      450 HP - 550 Nm
      STAGE 1:
      520 HP - 660 Nm

      PORSCHE 911 991.2 CARRERA
      ORIGINAL:
      370 HP - 450 Nm
      STAGE 1:
      470 HP - 620 Nm

      I thought you might be interested.
      No dynos provided but they are right that there is big interest here.

      Keep in mind this affects not only the 9A2B6 motor in the 991.2 Carrera lineup but the 991.2 Turbo and S models as well as the 9A2B4 engines for the 718 models.

      What is interesting to note is another tuner contacted BoostAddict this morning asking for access to the PorscheBoost Project 991.2 for tuning purposes. It seems a crack has filtered out.

      Gentlemen, let the tuning begin!

      This article was originally published in forum thread: 991.2 ECU cracked - SDI21 flash tuning available for 2017 on Porsche 911 9A2B6 3.0, 991.2 Turbo, and 982 718 Cayman 9A2B4 2.0 and 2.5 started by Sticky View original post
      Comments 17 Comments
      1. KEMA's Avatar
        KEMA -
        Yes! Hoping for 500 WHP on the GTS with bolt ons. Exciting times
      1. Sticky's Avatar
        Sticky -
        I can't wait to get dyno results with a tune.... HELL YES!!!!!
      1. F16HTON's Avatar
        F16HTON -
        Dammit, just put my car on a boat today...

        Hopefully I can have something in my hands next week.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by F16HTON Click here to enlarge
        Dammit, just put my car on a boat today...

        Hopefully I can have something in my hands next week.
        You can live vicariously through me for now.

        A tuner is asking for my car. I'll likely be putting it on a truck this week. Expect before/after Mustang results and I'll be taking it to the strip this winter.
      1. quattr0's Avatar
        quattr0 -
        Still bench flash I assume?
      1. F16HTON's Avatar
        F16HTON -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        You can live vicariously through me for now.

        A tuner is asking for my car. I'll likely be putting it on a truck this week. Expect before/after Mustang results and I'll be taking it to the strip this winter.
        Sent you a PM, have a hook up for you.
      1. quattr0's Avatar
        quattr0 -
        Click here to enlarge Originally Posted by quattr0 Click here to enlarge
        Still bench flash I assume?
        Answering my own...According to Autotuner, it's a boot flash and not bench flash. Are you sure B&C Consulting will do bench flash @Sticky?
      1. nbrigdan's Avatar
        nbrigdan -
        I'm almost more excited for tuning options on the 718, more of an enthusiast platform and with lighter weight, but then again this makes the basic Carrera models (T, 4) even more interesting.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by quattr0 Click here to enlarge
        Answering my own...According to Autotuner, it's a boot flash and not bench flash. Are you sure B&C Consulting will do bench flash @Sticky?
        I guess boot? Either way the ECU needs to be pulled out.
      1. quattr0's Avatar
        quattr0 -
        Click here to enlarge Originally Posted by nbrigdan Click here to enlarge
        I'm almost more excited for tuning options on the 718, more of an enthusiast platform and with lighter weight, but then again this makes the basic Carrera models (T, 4) even more interesting.
        It still should be a blast for 718 tho, especially more engaging than 911. Too bad I wanted the 911 shape....
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by nbrigdan Click here to enlarge
        I'm almost more excited for tuning options on the 718, more of an enthusiast platform and with lighter weight, but then again this makes the basic Carrera models (T, 4) even more interesting.
        I'm excited for all of them!
      1. John Mclane's Avatar
        John Mclane -
        From them, pehaps too good to be true, select 991>2013; b6 engine is there:

        http://www.tuningfiles.com/vehicle-tuning/car-tuning/
      1. quattr0's Avatar
        quattr0 -
        Thats amazing gain if its true!!!!
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by John Mclane Click here to enlarge
        From them, pehaps too good to be true, select 991>2013; b6 engine is there:

        http://www.tuningfiles.com/vehicle-tuning/car-tuning/
        Looks correct to me:

        Click here to enlarge
      1. F16HTON's Avatar
        F16HTON -
        Buyer beware at this point. read the fine print:

        The dynochart is automatically generated to graphically demonstrate the difference between the original and optimized power and torque.

        Basically marketing speak for "this is not really a dyno but rather a graphical representation". That is not to say that they are not using the exact data points from the testing performed.
      1. John Mclane's Avatar
        John Mclane -
        Until I hear a real life car owner, I’m doubtful. Mcchip behavior comes to mind.
        if the turbo bearings are that sensitive to start stop, how can they tolerate increase in pressure? I think one or the othe is far fetched. In this case, I would like to believe the ASS won’t cause issues, after all we learned that we can trust car manufacturers to put our safety above profits (sarcasm). That’s the main reason I’ll wait for obd tune. In case of issues, I can return to the original mapping, although it will probably trigger a counter.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by John Mclane Click here to enlarge
        if the turbo bearings are that sensitive to start stop, how can they tolerate increase in pressure?
        They have oil at all times when running. The start stop is a problem due to lack of oil pressure when turned off.