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    • 2015 BMW F80 M3 / F82 M4 S55 inline-6 ecu flash dyno results from Jailbreak Tuning

      Well that was pretty fast. As reported last week the M3 / M4 S55 engine control unit has been cracked. Keep in mind this is very early in the flash tuning process of the new M3 and M4 but there are multiple tuners with the ability to flash the ECU out there with many more to come. Jailbreak Tuning posted the first Dynojet results of their flash tune and the result on 91 octane pump fuel is an increase of 20 peak horsepower at the wheels.

      Obviously peak horsepower does not tell the whole story especially on the newer BMW turbo motors as the gains in the mid-range are in the 50 wheel horsepower range. The torque curve is much fatter and the peak torque figure increases by 42 lb-ft at the wheels.

      People will obviously being comparing these flash figures to the BMS piggyback tune figures. As of today, piggyback tuning shows greater horsepower and torque gains. It will be interesting to see how these two approaches play out and the way they play out will likely be reminiscent of the N54 tuning scene in which each approach has its place with many people using both for the optimum setup.

      Regardless, the flash tuning era of the S55 inline-6 motor is officially underway.

      This article was originally published in forum thread: 2015 BMW F80 M3 / F82 M4 S55 inline-6 ecu flash dyno results from Jailbreak Tuning started by Sticky View original post
      Comments 30 Comments
      1. fastgti69's Avatar
        fastgti69 -
        So who is GSR/JB tuning? Never heard of this company from BMW performance and off of a sudden they're like gods. Somethings quite fishy....
      1. Sticky's Avatar
        Sticky -
        I would hardly use the term gods. They're a flash tuner like many others out there. However these cars are being flashed it is going to spread like wildfire.
      1. 135pats's Avatar
        135pats -
        I wonder why the S63 is still stuck in boost controller world, while the 55 already has given up at least partial read/write control. Interesting....Great news for sure though.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I would hardly use the term gods. They're a flash tuner like many others out there. However these cars are being flashed it is going to spread like wildfire.
        So why are they the only ones that have "Cracked" it?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        So why are they the only ones that have "Cracked" it?
        As stated in the article they are not the only ones.
      1. lulz_m3's Avatar
        lulz_m3 -
        @Sticky, are they flashing via OBD port or bench flash?
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        As stated in the article they are not the only ones.
        How about the N55 then? If they cracked the S55, then I'm sure N55 is cracked too, no?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        How about the N55 then? If they cracked the S55, then I'm sure N55 is cracked too, no?
        I don't know how the S55 ECU applies to the N55. Are they even the same thing?
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by lulz_m3 Click here to enlarge
        @Sticky, are they flashing via OBD port or bench flash?
        I don't know.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        I don't know how the S55 ECU applies to the N55. Are they even the same thing?
        AFAIK and what Terry was saying yea. They're pretty much the same, that's how he did the beta tune for it, just plug n play.

        I'm not calling these guys or anyone out. It just seems too good to be true... @Terry@BMS What do you think about the S55 ECU?
      1. Sticky's Avatar
        Sticky -
        Even if the ECU's are physically similar it does not mean the encryption is the same.

        I mean this was cracked super fast yet the F30 isn't.
      1. BlackJetE90OC's Avatar
        BlackJetE90OC -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        So who is GSR/JB tuning? Never heard of this company from BMW performance and off of a sudden they're like gods. Somethings quite fishy....
        I read that Matt (pedM5) from Powerchip started JailBreak Tuning.
      1. BlackJetE90OC's Avatar
        BlackJetE90OC -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        AFAIK and what Terry was saying yea. They're pretty much the same, that's how he did the beta tune for it, just plug n play.

        I'm not calling these guys or anyone out. It just seems too good to be true... @Terry@BMS What do you think about the S55 ECU?
        I seems like the F-series encryption key was leaked. Because it was said tunes for the F10 M5, 228i, 650i/640i were all coming.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by BlackJetE90OC Click here to enlarge
        Powerchip started JailBreak Tuning
        From all the things I've heard about powerchip in the past and what they have done. I'd stay away, but then again that's just me.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by fastgti69 Click here to enlarge
        From all the things I've heard about powerchip in the past and what they have done. I'd stay away, but then again that's just me.
        Matt has nothing to do with Powerchip / Wayne Besanko. He left that a long time ago. Everyone did.
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by BlackJetE90OC Click here to enlarge
        I seems like the F-series encryption key was leaked. Because it was said tunes for the F10 M5, 228i, 650i/640i were all coming.
        This is what I've heard.
      1. fastgti69's Avatar
        fastgti69 -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Powerchip / Wayne Besanko
        Ahh Wayne is the name I was looking for. Gotcha
      1. Flinchy's Avatar
        Flinchy -
        Click here to enlarge Originally Posted by Sticky Click here to enlarge
        Matt has nothing to do with Powerchip / Wayne Besanko. He left that a long time ago. Everyone did.
        ahahahhaah i was wondering if that was the powerchip you were talking about

        you know he's still around? going by 'wayno bes' blowing up diesel's (and A45 AMG's) now.

        http://performanceforums.com/forums/...ight=powerchip if you want some top lol's.

        still, anyone who's ever been related to 'wayno' has a lot of work to do to clear their name, unfortunately..
      1. Sticky's Avatar
        Sticky -
        I could annihilate Besanko with what I have but it's best for him to just go away.
      1. benzy89's Avatar
        benzy89 -
        Chances are these guys have some very high end software "specialist" that were able to beat the encryption, and then worked with a Jailbreak "tuner" to modify some of the OEM tables. This is how it starts, so more people work on it, it'll slowly get more and more refined, in addition to more control over the OEM tables.