Engine: For BP 1.8L. This fuel rail is compatible with most Mazda 1.8L DOHC BP engines Chassis Code: For NA NB. Car Model: For Miata MX-5. 1994-1997 Mazda Miata. 20-0369 Fuel Rail Mazda MX-5. This only includes the fuel rail and the mounting hardware making it ideal for custom applications.