Not even the remotest chance that they would "boltup". The spoiler/valances are totally different. For one thing the urQ fenders end where the valance attaches and the 4kq fenders extend down toward the ground and "curve under". The urQ bumper fits through the valance. The 4kq bumper "is" the valance. The list get's longer..... the "why not list" that is. Smitty