forget the rear drain, nitto pumps are good, very similar to the greddy jun pumps (nearly double the rotor thikness), i may even have a usd one laying around @ the shop.
Im not sold on the powertune stuff as most of it is copied / engineered, like the rb25 gearbox adpaters etc.... Id like to see some long term real testing (not just a few floating around with he said she said testamonials)