Engine mods and smog?

[RedNBlck]

I'm currently in the US and I am going to be station at Lakenheath RAF mid this year. I am by no means new to the evo culture but I'm not familiar with the "smog" regulations in the UK. In the states we have to have our cars sniffed every 2 years so that would mean I had to take off all my mods and put it back to stock in order to pass. I was wondering how strict the emission laws are. I plan on getting an evo 8/9 rs or I think y'all call them gt idk... I have plans on making decent power but I would like to know the restrictions on that first. Thank you for your time and any input would be greatly appreciated!!

 

[RsvRob]

You have an MOT test here every year. To make sure it's roadworthy. That's when it's emissions are tested. Most people just refit the cat. But it's possible to find a friendly tester :-SS