Bjorn, I have the exact same set up. Mine was done at a speed shop in Long Beach CA 9 years ago. Has held up well and sounds great esp with the LBMs!
When I am ready for a new system I will order from R.A.R.E. as my friend Mike buys all his systems from them and they are way beyond Pypes from a quality standpoint. We have compared two systems side by side one from Pypes and one from RARE, he sent the Pypes stuff back and said he will never buy from them again.
Appearently they (Pypes) have a pipe shop up in Canada who makes their stuff for them and they are not computer bent, therefore the bends are not consistant. I do not know this for fact, but that is what we were told.
We have another friend from MD who is down here for the PRI convention in Orlando this week. He is a nationally known engine builder and he knows the guys from PY/Pypes and he confirmed my opinion of Performance Years. I've have two experiences with them and neither we good. However, others on this site have had the opposite. Just like every other vendor, some people love them, others do not... Just offering an opinion...