EVOLUTION X 2010-2015 SIDE SKIRTS. All products require professional installation. Minor adjustment might be necessary. These are normal body work and installation steps.Therefore it is not consider to be defective. All kits are sold as unfinished products, prep-work (i.e. sanding, cutting, filling, body work and primer) and painting is required for the best finished look. Items come in gray primer. Professional shop with body kit installation experience recommended.