Do you have an 11' or 12'?Yes, full kit installed after break in. Noticeable gains on top end. Mid range gains are questionable as I am still tweaking the clutching. Anytime you can feel something in the thumb dyno you know it works. Slight weight loss on whole system. Stock clutching with full SLP set up was instant gains at WOT. 300+ rpm gain on top. Rode one day with stock set up, rode second day same area, same pulls in just about the same snow and it performed better. Its a huge pipe. I guess I am getting old as I actually like that it isn't stupid loud through low/mid range but at 7300rpm this thing wakes up nicely and barks.The only difference in the 2011 and 2012 part numbers is the 2011 has the belt holder piece which you don't need if you have a '12 with the cvt cover. Installing the y-pipe was a pain for the two bottom inside bolts. Now way could I get my long ball end 3/8" drive in there. Ended up making a 1/4" long ball end to work.What I will say is it exposes how bad the clutching is for the mid range on this sled.
I had a terrible mid range bog on my 11' then switched everything over to the 12' clutching and geared it lower, took the set screws out to run at a different clicker and mine has smartened right up! The sled snaps now and pulls hard and consistently through the ranges. But that won't help you if you already have a 12' I guess.'12.I wouldn't be against running a Bikeman set up either. Great reviews. Only seen one sled running it, but it worked well.