In case you haven't ordered yet, I'd recommend looking at a FASS or and Airdog, or additional filtration with the Kennedy pumps. Kennedy has great pumps from what I'm told but the much better filtration and the water/air/vapor separation that you get with the FASS or Airdog are important improvements. Your fuel injection system is very expensive and anything you do to protect it is money well spent. The stock GM filter/separator only barely meets minimum Bosch specifications and people have had a lot of fuel injection problems that could have been avoided. whether to go with FASS or Airdog is a tough choice. I went with FASS because of problems Airdog was having at the time that I bought mine but Airdog has fixed the pump problem, so should be good to go. Haven't had a bit of trouble with the FASS titanium lift pumps (have them on 3 Duramax pickups - two of them work trucks) so can speak to them as being good. No firsthand experience on Airdog or Kennedy so can only go with what friends and co-workers tell me.