Put the MPI kit on with 40 miles on the sled. Have loved this sled with boost. Pull the rope and go. Havent opened the hood other than to check on my belt. Original belt with 400 miles of boosted powder riding. In the trees throttle response is amazing. Playing on the turbo 850 is a dream, has the power at 10,000 feet you really want to pull off any move. Can't get any videos that really do it justice.
https://drive.google.com/file/d/0BxareB_-jtQcVzl3Nm9POEJzSm8/view
https://drive.google.com/file/d/0BxareB_-jtQcVzl3Nm9POEJzSm8/view