Originally Posted By: webfors
FYI, I got a message back from Motorking and it appears Fram is going to release an Ultra with the 22psi spec for this application 'soon'. I responded asking for more details on the timeline.
Great news. Late, and it will take a long time to be sure one gets new-stock. Maybe even need a build date code to be sure its not old shelf stock, for a while.
I've noticed the 4" long PBL22500 Boss has a 22 psi bypass. Fits where a PF63E does. Can fit in some PF64 applications (like mine, '18 GM 1.5T LYX Equionox) where there is room for the 0.7" extra length, while diameter is the same.
This Boss might be a good choice instead of a Wix or Wix XP or Napa equivalents. XP/Platinums have poor efficiency. The Boss isn't as good as an Ultra, but it should be sturdy enough at least. Bosses have around 90% at 20 microns or so from what little info is available on bitog about it. Not stellar great like Ultra, but better than XP-Platinums...