I haven’t experienced any durability issues thus far- and I’ve driven hard with it. The clumsiness and disregard from the couriers seems more of a hazard to poorly packed body kit pieces than easily going over 100mph- to me...so far. But, that sounds to me like (the seller’s responsibility) a new kit better be sent to you. Make sure you’re buying from the seller in the link I shared. Apparently, they would have you believe that there is a poorer clone of this kit floating around that is not as strongly built, and I have seen other sellers selling kits that “look” like this one.