Brake cooling duct plate includes 1 each left and right steel powder coated brake ducts for the hub. Connect your own 2.5" hose and intakes. Fits all 2006-2015 MX-5 with 323MM brake rotors and RX8. Order part number AWR-5605 if you have the mx5 rotor setup. Please call if the 3.0" brake duct is required.