so I took my 01 gtp with on a 3 hour trip to Muskegon last weekend and noticed something a bit weird, that after a few hours on the road and need to pick up speed or climb a hill it creates boost and almost hesitates in high gear 3,4, and does it with low boost pressuse. its hard to explain but has a back and forth hesitation until you create more boost pressure and smooths out a bit. car did this on a 5 hour trip to traverse city but didn't think much of it,until now. only had the car for about a month has 140,000 miles replaced the fuel pump, water pump, trans, and engine oil/filters, catless downpipe, supercharger oil. had new plugs/wires when bought, wondering if its the coupler? but I have been driving the hell out of it put almost 3000 miles on it and it runs and drives great love the car but want to see if anyone else had this problem? thanks -Jordan