Geezzz, I'll never install one of those e-fan kits going around today - specially duals. After 2 years time , they start to go to hell on yuh - the controllers are plagued with problems. adjust this , adjust that - electrolysis issues and all that fricken wiring
I've heard there's still killer Mark VIII kits around - That's an OEM jewel. The rest don't even compare IMO.
Just install it , your done.