I run a MSD 5 on mine. It made a 2 mpg difference and it “feels” like it has a little more power. The new Axcell coil helped out too, it picked up an additional 2 mpg and I would assume some horsepower as well. I have a couple of buddies that have MSD 6s and 6 Off Roads. I can’t tell any difference performance wise over my 5, but supposedly the 6 Off Road is sealed better. It may be a player if you plan on going through hood deep water :doh: I put in quick disconnects on mine when I installed it. If my MSD 5 takes a dump I can swap back to factory ignition in about 30 seconds

For $60 (from Summit) it’s hard to beat an MSD 5 and you can afford to buy several for the price of one 6 Off Road.