The PA emissions test consists of "is your check engine light on?" and "have you driven the car long enough since the last reset for all the CEL counters to click over?"
I passed with a Trifecta tune last year, no problem. This year, I have had a persistent set of codes we have been unable to fix, something about the engine running rich; at any rate, I reset the CELs using my ultragauge, drove 150 miles, then took it in for inspection. About 30 miles later, the CEL was back... but I was clear for inspection purposes!