Is any1 in here using the HKS SuperDragger Exhaust system for the twin turbo 3000gt/stealth? it has 95mm piping (about 3.75") and 130mm tip (about 5.15"). the muffler and tip are huge, and the piping is massive. it's obviously using mandrel bends, and doesnt have a resonator. why isnt any1 using it? it seems like a very well flowing exhaust. am i right? I'm thinkin about buying one, my buddy can get me one brand new for $600 shipped. how is the exhaust note on this (i have no cats) if any1 has any positive/negative comments about this exhaust itll be really helpful. Thanks.