Wondering who sells the blue filters... I've been looking for hours and can't seem to find them from a place that looks reliable. From what I can find the part numbers are below...

AcDelco: A2947C
Donaldson: P611585
GM: 15918221

If I have to buy a white one I will but from my research the BLUE is a better filter(?).

If funds were not an issue right now I would be purchasing an S&B intake :D

Nobody?

I think the blue filter you may be looking for is the Amsoil Donaldson EaA123. I have the Amsoil EaA121 on my truck. It has more pleats.

I think the blue filter you may be looking for is the Amsoil Donaldson EaA123. I have the Amsoil EaA121 on my truck. It has more pleats.

Those are the flat drop-in air filters, the LBZ and LMMs require the cylindrical cartridge air filters.

Amsoil sells the cylindrical ones also.

Amsoil sells the cylindrical ones also.

Yes, but not the ones with the blue Donaldson nanofiber Ultra-Web PowerCore media that came with the LBZ and LMMs as OE. The Donaldson filters they offer for our trucks are the white (cellulose blend) PowerCore filters, which are great filters - the blue nanofiber Ultra-Web media has a little more holding capacity and filtering efficiency.

They came with the Blue ones OE correct, why not try the dealer?

It's really pricey from the dealership parts dept. Just my personal experience from checking on retail prices at area dealerships, the price can range from $80 to $65 each.