Diablosport Forums

Living here in California we only have access to 91 octane fuel. I would like to try some of the 93 octane tunes for my car, but was wondering on how to convert the tune for 91. What are the spec differences. I have the U7145 with latest update for use on a 2007 mustang gt with roush off road exhaust and k&n cai.
Thanks,

pull 2* of global spark from the 93 tunes for use with 91 octane.

Thanks! It worked great! Only bad thing is I had to wait a few days for dry weather.