I had a similar issue like this too. Only on hard acceleration like on the on ramp to the freeway I would get this feel of a miss like I was loosing boost. I didn't get any codes so didn't have that to look into. I first thought it may of been a waste gate or bpv issue with the turbo. I was hesitate to get a new coil but it did have a crack in the gel pack so I kinda thru A new coil at it from Rockauto and it fixed all the issue there. I was over 100k miles with the original coil too.