just wondering what upgrades you guys recommend next? my friend said i should get a boost controller and from searching around the forum i guess the greddy pro spec is the way to go? do i have to upgrade the wastegate too or wat? i do have a external waste port that was welded on the crossover. do these upgrades make sense i running 15lbs on california pump gas will turning up the boost and getting these item make any difference. i dont have a datamaster either. Or wat else would be cheap upgrades?