Welcome. Your chug may be caused by a dirty egr valve. I had a simmilar problem that was worse when it was cold. Best of luck with your ride:thumbsup:
Check for a vacuum leak and don't overlook the rubber coupler between the TB and the manifold. Speaking of TB's, have you cleaned it lately?Around the same time I noticed that when the car was cold(this was winter) it would chug like it was gonna stall when I would feather the pedal(think backing out of your driveway. just taping the gas to get going). RPMs jump up and down and car jerks. Haven't quite figured that one out, but hasn't happened as much with the warm weather.
Hey don't we all have that? The annoying thing is it's a fifth gen carHave leaky trunk.
Welcome, and if you figure that out for under a couple grand, you be sure to let me know!!!Especially if I can get more performance out of that N* at some point.