Magnecor 8.5mm spark plug wires (1990-00 engine)

Quality plug wires with a stainless steel spiral wound core. Much higher quality than factory and a limited lifetime warranty.

8.5mm wires have 13% more conductor than 8mm for less voltage drop. Stock wires usually last 20,000-30,000 miles and are possibly the only weak link in the Miata drivetrain. No RF interference. Red in color.

Fits 1990-00 engines.