maybe yours doesn't need it.
These are the instruction i got on email when Henk sent me the files. I was naughty and didnt bother charging my battery as i know its strong.
Many Thanks, please find attached file(s).
Important (!): Loading up our performance calibration will ALWAYS void Factory powertrain Warranty.
Also ECU programming access may be limited to RSTuner VCI only. Even if you do program it back to stock.
By doing so, you agree to these terms.
Make sure you know how to put your car on FULL ignition !
http://fastchip.nl/manual/#3.0
Do NOT use a guide from the forum(s) but instead use the following instructions !
Do NOT open the attached calibration file (.cal) with any other program than RSTuner software !
1) Read the reprogramming instructions FIRST !
2) Backup your ECU configuration if applicable.
3) Backup your original .cal with the 'read cal' function.
4) Do not attempt to reprogram the ECU in freezing conditions.
First update your ECU software to _8200_7804.rst.
Takes about 30 minutes. Recharge Battery before next step.
Next apply the RON 97/98 performance .cal, which requires RON 97 or higher quality fuel.