Hello. I just bought an AP and tuned the car to the Stage2 ACN91 GSRv108 LWG map. I have a stock car with Greddy turbo back exhaust.

I ran the car at regular wastegate map and it was overboosting like crazy. Peaking at 28psi. Switched it to the LWG and here's the results. Still see some 25psi

Can someone give a quick glance and see if this is acceptable? or overboosting? Cobb website suggested 23 +/- 0.8 psi.

1-5 gear wot

https://docs.google.com/spreadsheet/...5Rm03d1E#gid=0

3rd gear wot
https://docs.google.com/spreadsheet/...RMWhVNUE#gid=0

going to buy wideband AFR and boost gauge soon to measure correctly
mechanic friend suggested getting a cheap 40$ manual boost controller to control the boost. Is it better to get MBC or get a protune at a shop? This is for a DD vehicle and I'm not experienced at tuning.