I have run a silber kit for 3 seasons now on a 2011 Pro, I have nada the aluminum tabs crack off of the airbox and the oil tank(nothing a quick reweld didn't cure.) I updated the kit to the new silicone air box, witch is way nicer in my opinion. I struggled with the not-so stock low and mid throttle burble with the dobek controller, Last season i tried the Boost-it Fuel controller which made a huge difference in trail riding. wide open throttle i didn't notice much difference in controllers. I run 10lbs on 100L everywhere most of my riding is between 4000' and 8000' with 5% over 8000'. I get some oil seepage in the engine compartment if my sled is 'shiny side' down...... which it is a lot..LOL
I ride with a couple of friends with MTK turbo kits, BD kits, and HMK kits. We are all so close to each other its almost a mute point. we can all go everywhere each other wants to go, we all get stuck sometime and laugh at each other. We even have swapped sleds for rides... Does one kit put out more HP at 9Lbs then the the other one at 10Lbs? we do not care... we cant tell by the seat of our pants and the Boost grin on our face as we pull the trigger on any of them.
I have dealt with Justin at Silber and he was Very good to deal with, Answered my questions after-hours, very good experience with him.
I have Dealt with Neil at Boost-it on my electronics changeover, Also a awesome guy to deal with, Very helpful with no ego about me having 'someone else's' kit.
I have sledded with and enjoyed Shawn Davenports company from MTK and Big Boost turbo's on many occasion, Very helpful and smart guy. even though he likes to kid me... LOL. He also has some very innovative thinking when it comes to products.
In conclusion I have had bad trips on my sled, a few things needed to be tweaked, But the good trips make you forget all about the bad ones.
My experience with sledding in the mountains since 1980, is this...... All sleds will give you problems sometime.. carry a good tow rope and sled with good friends.
I am over all very satisfied with my turbo kit considering the price to get BOOSTED..
See you on the hill.... Cheers!