Originally Posted by Bimmer07
I am in the same situtaion. Just tune (cobb preferable) and no other mods. Is it safe to go with Cobb and 91 octane ? Because I'm in Cali and I havent seen any gasstations here offering anything above that. And would I stillget 60WHP?
Yes, the Cobb will be safe with 91ACN. However, you're definitely not get a 60whp bump on ACN fuel. If you have any e85 available you can run ~25% blend and run the aggressive map and get close to a 60hp bump.