Similar experience with the Bikeman 900 on my '14 bottom end. Power is not even close to stock (in a good way). End of the 2019 season there were a few guys lining up and drag racing up a moderately steep hill for fun on spring snow. Lined up next to a turbo Alpha and had a few sled lengths on him at the top. I don't know what brand was on it or how well it was tuned, and my Kmod skid no doubt was helping me put the power to the ground. If the snow was deep he might have pulled away from me. Turns out we were parked across from each other in the parking lot. At the end of the day he made a point to come over and tell me my sled runs! Made me feel pretty good about my ol' girl packing my 300lb butt around the mountain!Had a 900 kit on my 16 pc with 3" track for a few year and then put a silber turbo on my 19 twin rail. Half way into the season I sold the turbo. My takeaway was the turbo has a bit more top end but the placement of the weight in the chassis takes too much of the playfulness out of it. After a half day in deep tech terrain I was shot. So I traded my buddy with the stock 18 twin rail and the light playful was back and right then I knew the turbo was going down the road.
Rewind back to the 16 pc with the 900 this motor was the funest thing I have ridden in 20 years on the snow. The reason is the snap the throttle has in the low end was what you need to get the nose up and over stuff as where the turbo had to have a longer runway to make it happen. And when your in the trees and pinned up to a creek the turbo couldn't make it happen. The 900 also had the less weight in the front and added to the playfulness of the front end.
Last year I rode a 2020 alpha with all stock with a can and as said above a perfect balance! But this year I'm going back to a 900.
Cheers!
Bought pistons for it this fall for preventative maintenance. $200 each for the piston kits and $280 for OEM gaskets and wrist pin bearings. All in stock. I can't even buy OEM pistons for my backup M7 anymore .