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underdog,
Aside from CA Fit drivers who would be more likely to buy a competitively priced turbo kit that IS CARB exempt vs. ones that aren't, other states with heavy population locales will some day adopt anti-smog programs that are similar to CA. Catering to the biggest PITA state now will pay off for you now with CA buyers, and later as smog restrictions become more wide spread. Re: journal vs. ball bearings- look into turbine sources who use Thermal Sprayed journal surfaces. The porosity that is inherent in the coating will hold onto lubricant, and will take more abrasive wear and heat than hardened, polished substrate material. T/S coated vs. uncoated should not have much cost difference. When I was in the T/S industry, turbine shafts that were repaired with coatings outlasted new, uncoated journal surfaces 3-to-1.
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