anyone ever put any type of octane boosters in their maximas before...??

 

why would you do this?

Octane doesn't "give power" and anything over 93 (recommended by Nissan) won't "add performance."

 

Octane boosters themselves dont even add that much octane. like .2 or .3 to your current octane. and like what 2k2wannabe said this will not make the car faster or give you better gas mileage. this is really only important if your compression is high either from high comp pistons or from a supercharger or turbocharger.