So instead of going the EMUSA route, im opting to piece together a full kit myself. I'm looking at a precision turbo (not sure exactly which one yet), tial wastegate and bov, not sure what intercooler, custom intercooler piping, 3 inch custom exhaust, vibrant resonator and streetpower dual tip 3 inch muffler, innovative motor mounts, KPro, and RC 650cc injectors. My biggest concern is a manifold. I want a sidewinder manifold but I'm curious as to the differences in quality between the OBX, PLM, and Full Race. I know full race is the best but its also almost triple the price. I don't want to cheap out on any of these parts so if it really is worth it id rather save up and get the Full Race. If anyone has any experience with these manifolds and has an opinion please let me know. Ill be running this on an otherwise stock K20A3 and i'm looking to run 9-10 psi to get about 285-300 whp on a DD.