Im about to throw in the OCT chip from stratmosphere (around the corner) in my 180. Anyone have any idea as to what kind of gas mileage ill get?? I know it depends on how hard I drive but a ballpark would be nice.

 

better off boost milage, worse on boost milage. So it almost evens out

 

Probably won't change much.... that is if you drive sanely. I've had the APR chip in mine for the past 3+ years and I still get about 25 mpg on the highway running 80+. Around town and mixed driving I usually get 22-23.

When I switch to the 100 Octane mode my mileage drops to about 8 mpg.. . (may have something to do with being at the track )

 

Thank you much! I bet your all excited for me