Just wondering where the difference lies? Did they crank up the Boost some or what? Also, what are the cheapest most effective mods I can do? I'm engaged and paying for almost the entire wedding so I can't go dumping much money right now into the car. I also don't want to hurt my gas mileage either as I drive a fair amount. I was thinking of adjusting the waste-gate to get some more PSI, an open element airfilter & maybe having some larger plumbing made to help move more air. Any thoughts/suggestions? Thanks!