Why are we seeing aftermarket turbos coming up for sale fairly often in the various forums. Are the aftermarekt turbos not living up to expectations? What are the reasons for the constant upgrades and why not just buy one and stick with it, after all we have the best tuning tools available to us What turbos are ya'll running that you would recommend to the rest of us who are on the fence and about ready to buy? Aurora?, Htt, etc.....