i think it depends on your riding style. if you like to run flat out often then the open style air box is the way to go. if you ride 2 up alot and like to just put around just go with the stage 1.
i feel i lost torque on the bottom end but now my hp is still rising when i hit the rev limiter
09 vegas 8ball
rpw thor,pcV,loydz air box
mustang seats, ms batwing,
ebc pads, d407/408 tires,