This air cleaner kit is designed for use with Ford Mustangs equipped with small block engines and chrome air filters. The kit measures 13x3 inches and is compatible with models 260, 289, 302, and 351. California Prop 65 Warning can be found at https://www.p65warnings.ca.gov/ for more information. The kit is ideal for those looking to upgrade their air filtration system and ensure that their engine runs smoothly. It is easy to install and will provide a reliable and efficient air filtration system. Please refer to the provided images for detailed installation instructions.