As im running injection on the Manta with a coil pack i didn’t want to use the standard plug leads and needed some custom ones making. so after a little look around the Magnecore seemed like the best option. They also do a custom made set so i could get the right length and just the 4 leads. The do the ends just as you want them so i have gone with a high temperature 115 degrees boot on the plug end. there the 8.5mm red ones.