i really really dont  see the point of this.  I tune a LOT of these and the end result is no different from ECU to ECU.  Spend your time tuning, not trying to flash different images!

Hi,

EEPROM data structure from 551K and 551Q are alsolutly equal.

The only differents between both dumps is the ECU coding and the car specific entrys FIN, WFS and login code.

ECU coding for european RS4 with 551K with "Euro 4 norm" (with cat, rear O2 sensors and SLS), is 10711.
For the japanese RS4 551Q box it is 5711 without cat...

So it is also coded in flash variable VARDEF "Default Variante für Variantencodierung" at 155D6.

The posted 551K EEPROM is read with ArgDub`s "ME7_95040 - EEPROM programmer".
So we know it works fine.

Regards Thomas

Along with the 16bit load axes, there are alot of other parameters that stock on the RS4 are closer to where we would modify our S4 files to (like ARMD, stage 3 boost PID, etc).  And not everyone modifies all ranges of all of the tuning maps (like every section on timing maps), so the RS4 stock values are likely a better value than the stock K03 ECU's for us bigger turbo guys.  That being said, I personally was looking for an excuse to start from scratch and make my modifications one at a time, so the switch to the K-box does that for me.  If I had a completely ironed out tune with no intended changes for the future, I probably wouldn't bother with switching.

I'm curious how my load notch will look with the RS4 as a base (see this thread for reference http://nefariousmotorsports.com/forum/index.php?topic=1848.0 ).  It will be cool if using the RS4 box as a base takes care of that for me, saving me the time of tinkering with it on my M-box.

jibberjive, to mostly remove the notch, the last column of KFPBRKNW and KFPBRK should be set to equal values.

You will have it.