Are these for you?
We run these on ALL of our Turbocharged and Supercharged NC MX-5's now. The colder plug temp is ideal for pre-det protection and the laser iridium material will outlast anything else in these harsh conditions!
Included:
4 x NGK LaserIX 7 Heat Range Plugs
Factory Heat Ranges:
06-15: 6 - These are 7
