Particulate filter upgrades abroad

Apologies in advance, I know there’s been a lot of info already about upgrading Euro 3 to Euro 4 with Particulate Filters to comply with the LEZ, but wonder if anyone has any experience of these upgrades abroad.

I see from the German MAUT site that they recognise upgrades - which I guess requires a TUV test/inspection - but has anyone had first hand experience of this. We’re looking to upgrade a number of Euro 3 DAF 95’s and will want to purchase an upgrade which is recognised in most main countries - DE, SE, NL, CH, etc.

Cheers

Paul

look at the eminox site they are approved for all of the cities across europe, hope this helps

Thanks Wildfire for the response, but have had a look through the sites and spoken to the dealers and manufacturers but wondered whether anyone had first hand experience.

Cheers