Just did the switch, from 27.5 to 31.5 highway 60-80 MPH (90% highway)
could be me, but appear that city driving bring more temp to engine = no like SC off = be careful if modded on city driving, I don't do much city so don't quote me (yes is doggy, like someone say has to do with compression ratio)
Is good also if "someone else's" has to drive car
if it get stolen they will dump it around the corner LOL....LOL
also good for teaching that special someone to do stick shift (car is so smooth is even pleasant at times)