no u dont have to shave the head u have, i didnt look at your mods, get the +4 key, with ur mods i'd work great, dont go +7 it makes a hell of a diffrence, boonman and bdbanshee lighten flywheels, try givin em a pm, shocks are a hell of a diffrence on a banshee, theres many makers, but most of the people on here love elkas if you have the money