For those of you still watching this thread, over the holidays I recieved and installed my NW DCAI. Looks and feels great. The most notable difference is acceleration in speeds over 90 mph. As for P&P manifolds, I have no intention of doing anything that i cant transfer to any MB V6 or V8. Next on my list is a full NW exhaust, under-pulley kit, and ECU Tune. I hope to be around 250 RWHP at that point.