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Message: <blockquote data-quote="LCP" data-source="post: 207108" data-attributes="member: 2424">You cannot fine tune anything on stock ECU, unless you change to a programmable ECU, or get some sifu to edit the ECU fuel/ignition map and flash into a new chip, like my Satria. Else hafta buy things like Unichip piggyback ECU which is programmable. Reading and understanding the graph... no idea yet on their skills, but for my Satria I will interpret the graphs myself and take it back to Matspeed in Shah Alam if needed for a remap. For my E36, I just want to get a baseline reading, not planning to tune anything since nothing can be tuned on the spot. Setting up for dyno may require some skills, but once they can get proper and good traction from your driving wheels on the rollers, you should be okay. Next will be how well the dyno is calibrated. Apart from that there shouldn't be much problems. Of course, if they are clever, they can "cheat" you, when doing baseline dyno, they may not set your car up properly on the rollers, or they can tweak some "correction factor", to give you a lower reading, all in the hope that they can sell you their tuning products...</blockquote>