My friend has a wrx with a bunch of cobb boltons and some intercooler piping and an intake and stuff. It was tuned on 93 octane and put down 230whp and 227ft lbs of torque. He is looking to get it retuned on 100 or 110 octane. What do you guys think of running octane that high? Obviously there are benefits but I dont know much about the cons. With a good tune what kind of dangers are there?