Just to let you know I'm still out here. I have 2 needles on the way and will be testing them this weekend if they arrrive in time. EMP/EMN and a 160MJ. During my rides last weekend, with my EKQ #3, with US pipe, and first ride after BK, sputtering wasn't too bad at constant rpm. It was there, but not as bad as before. I'm getting close! Ran the europipe as well, but generally seemed down on power in comparison. I'll put up results soon.