Appearance. The HV ignition only helps if you have the appropriate modifications such as injectors, higher compression, economy mode or boost. I don't think they will be better than Stock. I didn't see any fuel savings or performance gains. They're also cheaper than Motorcraft and work just as well. The question of ease of assembly does not arise here. It's the same as stocks. When you need colourful, efficient coils for your F150 (I have 4.6L). They will work just fine.
Upgrade Your Mazda MX-5 Miata With CravenSpeed'S USA-Made Door Bushings
39 Review
Gooacc 50Pcs Hood Insulation Retainer Clips - Perfect Replacement For Grand Cherokee, Dodge Ram, Chrysler PT Cruiser, Plymouth Laser, Neon - OEM Part Number: 4878883AA
33 Review
820Pcs Car Push Retainer Clips & Fasteners Assortment - Ford GM Toyota Honda Chrysler BMW Benz Nissan Subaru Audi Mazda
32 Review
Replace Car Bumper Clips: GOOACC 100Pcs For Nissan, Mazda And Infiniti, Including Fastener Remover
33 Review