I'm a week away from my new X but I'm having problems deciding which route I'm going to go. I can either get the SC and have 210hp right off the bat or get the standard V6 and have 180hp and work my way up. I'm having alot of problems with the gas mileage problem (or lack of). What mods would it take to get the same amount of performance w/ out the SC from the regular V6 and what would cost be? Thanks!