Review: MAC Autosport Stillen SC Install on G37s

Originally Posted by dal1307

The tune should be good for a large range. It might be a problem if I wanted to go somewhere that was around sea level as I would be making around 9 psi of boost instead of the 7.2 psi here at altitude. I am using 91 as it is virtually impossible to get 93 pump around here. There are a couple of racing fuel outlets but that would require mixing my own. There are maybe 2 stations within a 25 mile radius that have had 93 in the past but that was around 2006 and I don't know if they still carry it. So, I opted to run 91.

My road trips mostly consist of hitting the canyons in our foothills in the summer with some trips up to Winter Park and Breckenridge which are both at higher elevation. I should be good to go.