D5 tuning

[mondayo]

Evening all,

I've come across this....http://www.polestar.se/viewpage.asp?node=1&ID=628&edition=p_uk

Has anyone any experience/knowledge about this. It seems a bit pricey with what's out there, but on the flip side, it has the obvious benefit of not affecting your warranty.

Also, how can the tune not affect the top speed? Now, I've never felt the need to go over 130mph, but it makes me slightly suspicious of how good and effective the tune is?!