For Belgium if you want to have it chipped look at
www.kempower.be or
www.autotuneheinz.be
It's well worth the money, power difference is unbelievable
(I went from 163HP and 340Nm to 205HP and 440Nm on my 320D)
and it's using less diesel (about 0.3l/100km less)
What options do you have? I think the 18" runflats aren't too bad for Belgian roads, had more problems with my E46 and M-kit than the E90
