Pro-Tuning Issues

I hope some of you guys may be able to help here as me and my Pro-Tuner are having some drivability issues with the car.



So...



Catless DP's

200 cell catted mids

BMW PE

ETS FMIC

Cobb AP

Stock intake

Stock CP

Stock DV's

94oct always



Ok, so with OTS stage 2+ aggressive the car ran great and never failed to accelerate smoothly or cleanly however, since Pro-Tuning the car now hold back power when I accelerate hardly between 2-3.5k. Best described as the car feeling like it's hit a wall after the initial kick of the turbos, keeps accelerating but without much force and then roughly after 3.5k it goes like a rocket ship...seriously so fast and much more so than OTS. Think of what I'm describing as traction control kicking in severely but, what I am experiencing is all with traction control switched off.



I believe that this is timing pull to keep the engine safe? The turbos now boost to around 18psi and I'm wondering if perhaps at certain points in the rev range that this is too much causing the 'power cut' that I'm getting. What do you think?



We've been through around 10 maps I'd say with the last two being total start agains. These last two maps are MUCH better but the issue still persists in places.



Has anyone had anything similar?