the main benefit of the stage 3 kit that the way the gain system for injection works.. because of "Digital Variable Controller with a 2d map programmed into it’s microprocessor that takes both boost and exhaust gas temps into account in regulating injection. The net effect is smooth power in all engine load states with no combustion quench resulting in a true turn-on-and-forget system" You can leave it on and utilize a pump kill switch as an option too.. so it can work for just guages and not injecting when you want to.. It aslo can double as the Stage 2 kit because of the Boost only mode. You will see higher Dyno #'s with the water meth on.. depending on your mix of water/meth.

 

i have a stage 2 from snow performance for sale i have five nozzles with it a pump and controler i loved it but i need a bigger system. pm me

 

i have a stage 2 from snow and so far not impressed but mine is a tuning issue. there is a slight drop in egt's.