between the spugen airwalker kit and the authentic one? Are they the same material? How about fitment issues?

 

ttt

 

The difference I belive is that the Spugen kits are Poly Urethane which is flexible and won't break. While the authentic Airwalker lip is Fiberglass and will crack and break if you hit something. Fitment on the Spugen is very good, I dono about the authentic piece though.