Searching Google for new products for the 208 GTi I found new upgrade parts.
The UK company Airtec Cooling has made an intercooler upgrade and alloy boost pipes kit for the 208 GTi.

The Airtec intercooler is much bigger that the stock intercooler and therefor the upgrade intercooler can cool the intake air better that the stock intercooler.

I have contacted the company who sells the Airtec parts I will probably order the Airtec parts to test the parts on my 208 GTi.

Airtec intercooler upgrade













Airtec alloy boost pipes kit