Fedar Main Upper Billet Grille Insert for 2016-2017 Chevrolet Silverado 1500

Well made product .... except for the screw clips which fit too tight and were nearly impossible to tighten.Luckily, I had others in stock and got the grill inserts mounted.NOW for the BAD.... the supplied mounting hardware interferes with the radiator shutters when it gets cold like it is now in Maine.This causes the check engine light to come on...Amazon customer service contacted the seller who called me and generously offered a full refund and said he'd contact the manufacturer about the U-clip problem....