Yes 93 octane. I was thinking about going to e85 in the future, when I did more research because it looks like there are significant gains to be had. Been reading about the stock 5 speeds though, not liking what I'm seeing but again I don't rape the go pedal, so I'm hoping it will last awhile still. I JUST NEED MORE THROTTLE RESPONSE, like my original 05 STi. Wheres the hold up to that in my system here? I've researched the hell out of this and thought I bought all the right parts, it just still has that split second hesitation my 05 did not have. I want that instant GO back.
But all in all , I thought these were great numbers, the daily driving of it hasn't changed one bit, well. its a little louder, but with that perfect SPT boxer rumble I'm OK with that, it's not a droner like a Honda with a fartcan. (And don't get me wrong, I love Hondas, I owned a 95 Civic Si for 11 years).