-According to the original factory specifications. Gives your vehicle a new style and appearance. Perfect cover that is useful, flexibility and so practical. No Modification or Cutting Required. Please allow 0.5-1 inch difference due to manual measurement. No installation instruction included, professional installation is highly recommended! Important Notice : all of our products are required to be installed in professional Modification car shop, NOT every car shop can make it! Our products are modified car parts, NOT original products, Small install gap is Allowed! Your satisfaction is our priority. Appreciate your kind understanding. International buyers please note: a.