So i've been looking around and seen a lot of people running E85. My knowledge is pretty poor, what would be so good and about it and bad? how would you prepare your car for it?

 

A set of 47lb injectors plus an ECU remap is all you need to run E85.
The upsides are a ~4% increase in HP/TQ, lower emissions, a cooler running engine, and a lower fuel price.
The only downside is a ~30% drop in gas mileage so you'll be filling up more often..

 

I wouldn't run that-but that's just me