I asked an (alleged) porsche specialist who claimed he had a PST2 to do a PPI. He said what the PST2 could and couldn't do. He said the engine history only went back weeks and you would only know about recent problems.
I then asked him about doing the IMS / RMS retrofit. He said it would cost $1500 and "most of them must already have had it done by now". Then he said they only used the Porsche upgrade kit and didn't know anything about the LNEngineering offering.
In short I am still pricing the IMS / RMS in nothern/central NJ and trying to find somebody reputable beforehand. There's a guy in Peapack, another one in Morristown and lastly Belleville. So far I am not very impressed, any recommendations from forum members?