Leaderboard

If you're wanting to add drivers, Skar specifically, I'd get 4 subs and take the money you would have spent on the other 2, and upgrade your power. You could sell your current amp as well to add to funding. That way you're getting the best of both worlds.. more drivers + more power = epic deebeez

The cooling increases the amount of cooling that is effectively pulled over the voice coil, thus obviously cooling. The flat wound coil also increases power handling due to the fact that a flat coil has more effective area to cool vs a normal round coil. (the only adverse thing to cooling is that it removes metal from the motor thus less motor strength this only matters when your using them for burp/fart setups only) I would suggest cooling as a bare minimum for the subwoofer. I would suggest first monitoring your voltage for drops to see where you'll need the upgrades.. As for batteries it will depend on your car.. For a rear battery whilst leaving your front In would be either a deka 9A31 or a xs power d3200