Harnesses with coil sub-loom disconnects allow quick valve cover removal

https://medium.com/@broccarkxu/the-ultimate-guide-to-obs-ls-swap-packages-parts-risks-and-proven-build-tips-1b24531abded

Harnesses with coil sub-loom disconnects allow quick valve cover removal, easing maintenance on LS engines with relocated or upgraded coil packs.