The standard brakes were a 256mm disc. Fitting the sport brakes to the Mk1 or Mk2 is a common upgrade, you will need the sport brake lines, callipers and calliper carriers if you want to do the conversion.
Mazda MX5 MK2 Cam Angle Sensor (1998-2005) BP4W-18-230, MITSUBISHI OE-J5T12 181
Mazda MX5 Mk2 Key Blank OE Mazda years 1999-2003 Part number 905-877
Heater hose kit for Mazda MX5 mk2 and mk2.5 1.6 1.8 1998-05 NB both hoses a/m
Heater hose kit for Mazda MX5 mk2 and mk2.5 1.6 1.8 1998-05 NB 2 hoses and clips
Exhaust manifold heatshield s/s Mazda MX5 mk2 1.8 mk2.5 1.6 not VVT MX-5 JASS
Mazda MX5 Mk2 Mk2.5 NB 98-05 - Black Aluminium Radiator