[Harper55987]

Been noticing the harder I push my 135i I am starting to get a sort of...jerky acceleration or like the car is holding back when I hit about 3500, 4000 RPM's.

I don't feel a lack of power and it still pulls hard but it seems hesitant almost.
I would say it happens more going uphill then downhill/flat.

I have a JB4 in my car as my only mod.
Only other checks/concerns in my car are:
Low Pressure Fuel Pump has been thrown. BMW dealership said not to worry since they could still hear it being turned on when my comfort access got close.

Is this a symptom related that it is not getting enough fuel or lacking in the LPFP?