Radium FPR RA Fuel Pressure Regulator Kit - Mazda MX-5 NB 99-05Complete fuel pressure regulator kit engineered by Radium Engineering for Mazda MX 5 NB (1999 2005). This comprehensive kit includes the Radium RA series FPR, mounting bracket, and all necessary hardware to replace the restrictive factory fuel pressure regulator with a professional grade adjustable solution. Compatibility Mazda MX 5 NB (1999 2005) Mazda Miata NB (1999 2005) Key Features Complete kit with RA series FPR and mounting hardware Adjustable