Plug-in the MaptunerX a let it reprogram the ECU. That's all you need to do to unleash the performance in your Ski-Doo 850 E-TEC. The Stage 1 tuning software is calibrated for the northern climate, tested by our ambassadeurs and carefully refined using all our knowledge in snowmobiles and engine management. The Stage 1 brings more power, mostly in the higher rpm-range, and a very appealling characteristic which Maptun is renowned for.
Our main focus is always overall drivability and ”accessible performance” at any time, instead of just peak power.
No Speed Limitation
Tune RPM Limit: 8300 rpm