MX5/Miata COPs Conversion kit (Pre-Wired) PNP MK2.5 NBFL VVT. If you are looking at this kit then you probably already know what it is. Are you building a Turbo or Supercharged MX5, if so then our coil on plug kit is for you! This kit paired with a standalone ECU like ME221 Revision 2 or ME442 will enable you to run more boost without suffering from spark blow-out which tends to happen on the stock MX5 coil packs. You will also be able to run Sequential fire of the plugs, instead of the wasted spark setup usually ran when OE. These kits are tried and tested on all of our forced ...