Throttle Body Pro Serie 2.5" 64mm Application: For 1999 to 2005 Mazda MX-5 Miata models For 1999 - 2000 Mazda Miata 1.8L L4 1.8L BP-4W For 2001 - 2005 Mazda Miata L4 1.8L BP-Z3 For 2004 - 2005 Mazda Miata L4 1.8L BP-Z3 Description: CNC Aluminum Alloy. Increase Horsepower with Aftermarket Turbo Setup, Faster Throttle Response Will Support High Horsepower Boosted Engine Designed to maximize engine airflow. Pro Series Throttle Bodies are also compatible with OEM throttle cables, which simplifies installation. All necessary hardware and a new throttle body gasket are included for trouble-free installation. No Instruction.