Miata COP Weather Boot
These boots are designed to be used with the Fab9 Tuning Coil On Plug kit for the NB Miata. Instead of the O-Rings provided by Fab9, these weather boots help keep the coil centered in the spark plug well and keep water out.
These were designed on an NB2 valve cover. They should fit all other 1.8L valve covers, but 2 of the boots are notched to clear obstacles on the NB2 valve cover which may not be needed on other years.