Marc said:Hi Pino,
Firstly, welcome to the site! Now get some pics up so that we can have a look at your V40
With regards to your question, It looks like Polestar might be able to do a remap for your engine. Although its not listed on their site, they do have a tune for the D3 in the XC60, XC70 and XC90. If you do go with Polestar you'll keep your warranty intact, and with a new car that is very important.
I wouldn't even consider changing the intercooler until your warranty is finished.