I have a NNBS intake/throttle body combo with an X-link on my 06 Silverado that's been on there almost a year. It worked perfect up until a week or so ago and now all of a sudden, you stab it WOT and it feels like it's choking. I can kill the engine, restart it and nail it and it pulls perfect. And it's not consistent, that's what has me aggravated. No codes are being thrown either which is weird and not like other problems I have read about.