I was intending to use the PE's again when I started the new build. The problem was that both turbos were toast only after 20k miles of moderately hard use. I spent weeks trying to get them rebuilt with no luck. PE told me to buy a new set. It was at that point where I realized the error of my ways and got a real set of turbos that have a manufacturer presence in the US. And a crap load of extra power too.