Parts for Stage 2 upgrade for a Golf GTI Pirelli

Need help with part selections of a Diverter Valve and a PCV.

Factory Diverter Valve may fail where the boost pressure has been increased by an ECU software upgrade. So need to choice a different DV to improved reliability.
The options for OEM Upgraded Piston Diverter Valve I find are

Forge Motorsport Replacement Valve for 2.0litre FSiT TFSi Engines
Forge Motorsport | Alloy Fabrication
AWE Tuning Diverter Valve - 2.0T - Mk5 G/J (06 - 09) - VW - PRODUCTS

Next part is the PCV or with Oil Catch Can too.
BSH Speedshop
BSH - FSI PCV Revamp - BSH Speedshop
BSH - VW FSI Street Catch Can - BSH Speedshop
42draftdesigns.com
Mk5 FSI Stealth Oil Catch Can Solution
Mk5 FSI Ultimate Oil Catch Can Solution

Or other parts recommend are appreciated.
Thanks

Just get the oem upgraded piston type diverter valve.

Ok, I will go with OEM Diverter Valve Upgrade

thanks