Most of our products are direct from distributor and are intended for jobber purpose, so they may not come with instruction manual. Professional mechanic are recommended for installation. This can avoid many problems that can often be found with an inexperienced installer of aftermarket products.All Sales are final, NO return unless it's defect. All defect item must be reported and return within 30 days after receiving the product. All emails are to be answered within 24 hours except Sat and Sun. The item "Fits 15-19 Dodge Challenger Hellcat to Demon Conversion Lip + Fender Flares Kit" is in sale since Friday, March 15, 2019. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts\Exterior\Body Kits". The seller is "advancetuning" and is located in La Puente, California. This item can be shipped worldwide.