X-OST exhaust and emissions testing

Today I received my new X-OST exhaust. It looks pretty nice, very similar to the tubis which is no surprise, given that the company was founded by former tubi employees. I'm looking forward to checking out the sound as well as soon as spring arrives over here in switzerland.

Before that I will try to put it through noise & emissions testing. The exhaust comes with NO paperwork however and I was wondering if one of you has had to do some testing to get it "approved" for street use, through emissions testing or anything.

It would be great if other X-OST drivers could share some knowledge / paperwork that was produced during the tests. I am planning to go through noise and emissions testing anyways but I figured that a little paperwork might help for sure.

Thanks a lot!

P.S.: Tubi paperwork would also be very welcome.