997.1 turbo 3.6 (2008)
Tiptronic

What I've done:::

Full exhaust systems (akrapovic)
IPD High Flow Y Pipe
IPD Competition Intake Plenum 82mm
GT3 82mm Porsche Throttle Body
Intercooler Forge
COBB - Stage 2+. (Www.cobbtuning.com did the map)

Race Logic shows:

0-100km 3.4sec from launch
100-200km 7.2-7.4

I wanna make 6.5-6.7sec 100-200 km

Is it possible on stock turbos?

What else to replace???