so im looking for sum more power for around $5-600 bucks. seems like gears would be nice on the street at lights, but its seems most of my driving is on the highway and i cruise at 80mph and like to punch out up 100mph when the coast is clear so every time and ocassionally liek to get up 115-125 ranges. I dont want to not be able to hang with other faster rides at high speeds or revving out a control so Which gears do guys recommend??? power on the steets and on highway at my speeds