Hi all,

I have a 2014 Mustang GT that I bought in July. It has about 9100 miles on it. I took it out this morning and noticed it was running a bit rough out on the highway. It was shuddering/choppy when accelerating and backfiring when I let off of the accelerator. Turned around and took it straight to my dealership, but they haven't been much help so far.

I have a Steeda CAI, BBK 85mm throttle body, BBK ceramic long tubes, a custom catted H-pipe, and MBRP race series cat-backs on the...

2014 GT - P0302 - Cylinder 2 misfiring - need help