"Turbodrive 250S" with new software update

To further increase the performance of the "Turbodrive 250S" system, we have delevoped a software upgrade. The main feature of the upgrade is the lowering of the V-Tec point from 6200 rpm to 4500 rpm. As a result, power and torque are improved in this mid range rpm. The power curve no longer shows its usual "dip" just before 6200 rpm.

Available for models up to 2005. For models from 2006 onwards, the upgrade is under development.

Diagram: red curve engine with existing software, black curve engine after update.