Well, i was hesatant about sharing this, but i was looking through a couple boxes friday, and found my old events visor, well i decided to mod it to fit the i4's, its the easiest thing ever, no zipties or stuff like that, just a pair of sharp scizors..I colored the digi blue black so it doesnt look dumb...it sticks out farther than if you were to do the i3 visor mod...and looks better also, you can make it just about any color...here ya go.
allright, first you take your scizors and cut to where the bump is on the side pointing out on all 4 pegs
...then on the other side of the peg you cut close to the bump, but not too close or you will mess it up. You cut the back 2 pegs closer than the front ones or else it wont fit.
Next you Cut off the Tail part..you can cut it how ever you please..just make it look good at least
And thats all, place it in your i4s and make it how you want and thats over..
I hope this was a big help.have fun, just good luck finding an event visor...