Rode a 15' viper with stock mpi turbo yesterday for a full day and I was quite impressed . I'm full on 2 stroke , but it may of changed my mind . Mpi 180 kit works great . Unless your climbing the big chutes or have lots of bucks , waste of
money to go for the other kits . $2500 extra for the kit is great value . 90km ride bagging on it and still had just under half tank of fuel !
money to go for the other kits . $2500 extra for the kit is great value . 90km ride bagging on it and still had just under half tank of fuel !