Jittery Chugging when accelerating and coming off (981)

[Bakerr09]

Hi guys,
I've got a base 981 Cayman, done about 34k miles. Service every year and get all reccomended things.
I've noticed recently that my car feels a bit jittery and almost chugging like behaviour.

Its not majorly aggressive but I can feel it.

I mostly feel it when I accelerate moderately hard and come off the accelerator. Sometimes I can feel it going from gear 2-3 aswell.

Its a PDK with sports chrono package.

I daily the car and often drive pretty hard when I can and feel safe to do so. I've heard the PDK can learn your driving characteristics and maybe it's that?

I also had some 95 octane fuel in and thought maybe it's that?

I just filled it back with 99 and I'll see over the next few days if it goes away.

Am I being overly worried here?

Thanks

[David W.]

Coil packs, is it worse in the wet?

[Bakerr09]

David W. said:

Coil packs, is it worse in the wet?

Unsure, I'll try to get a chance when its dry and really wet to see if it's much different.

Are coil packs expensive to replace?

[David W.]

Not sure, I had some under warranty once due to lumpy running. Google is your friend here.