Alright guys..I'm ready for a bigger turbo for my car. I want to upgrade badly but this smog thing in CA is really bugging me. Will putting a Big 16G fail on smog tests? And will it fail on the machine or by visual? I don't want to go through the trouble of dismounting the turbo every 2 years. What about the other mods to support the 16G (ie..dp, port/polish o2 and manifold, fuel pump, bigger injectors, etc.). Thanks for the info. And for those people in CA that have these mods, did you have trouble smogging it? Thanks!