OK...got a new list of mods...(one could read my present mods)...but before I go manifolds/DP's/TB's/piping/turbos...I thought, can I do something now....thinking dual intake and 58mm TB. I hope some improvement in air flow. Also any real difference in performeance between Selin, with their adapter or a dummy mas (the obvious is no chip burn)...I want to get a pretty good tune (NIStune) at the dyno....then a tackle the desired more complicated mods later. thanks