silber turbo kit help

I have a silber kit on my xp1000 ran good for 2 days lost about 4psi. Found small boost leak turned it up after. Got 15psi out of it for about 3 weeks ran really good. Went to the dunes, out for 20 min then lost about 10psi. Now only boosting 5 pounds. Cant find a leak. I’m at a lose. Anyone local in ogden utah that knows these things that can help out?