MGP Caliper Covers are manufactured in the USA with 6061-T6 aerospace grade aluminum. They are TIG welded for strength, powder-coated for durability, and include a patented stainless steel fastening system. No adhesive, tape, or caliper modifications are required. Typical installation time is one hour from start to finish. Each configuration is engineered for the specific vehicle application to ensure proper clearance and a secure fit. When you order a set of MGP Caliper Covers you will receive parts that were specifically designed for your vehicle. The included stainless steel fastening system is also specific to your brake caliper.