What is the life expectancy of a factory CP3?

I have 106k miles on mine, and it is dropping RP under load.

I have good RP (7,500 psi) at idle, and it seems to be decent when everything is cold, but after warm-up, at 80mph/2k rpm, actual RP will be 2,000-2,500 less than the desired RP according to MM3.

The difference can be as much as 9-10k psi if I hammer on it.

At 100k miles, I did a II short block, different turbo, slightly bigger injectors, trans, changed tuning from Mini Max to DRD, Airdog 165, and added II Bag O Parts.

I never monitored RP before the MM3, so perhaps the CP3 was getting weak.

I have been pretty religious about using fuel treatment, so I thought a CP3 would last longer than 100K miles.

Any info is appreciated.

Thanks, guys!