kowalski

Yes Kristian, but you've done more than one thing to your engine. And then someone tested the car and you got an emission certificate. No problem. These kinds of emission test usually cost ~1700-2500Euros. And I doubt the OP is interested in spending these amounts of money. What I wanted to point out is the that the JDM versions don't comply with the EU ones and therefor a thing like the MiniKat won't work. At least if people involved act according the regulations... I also know people that drive around in Germany with wrongly achieved Euro-classes which could lead into problems (tax-fraud) ...

It's not only different test procedures in Japan, also the lack of the egr system and other components used (injectors, maps in the OEM ecu etc.) will make it unpossible to improve the Euro-class to "Euro 2". The Mini-Kat is of no use for a JDM supra.