"Do any of the sites selling them list if they reach M1, M2 or M3 standards?"
I tell you what do all these guys what they tuning their cars removing "OEM" stuff and putting on their cars what they want keeping safety standards?
Or government should set each car owner a physical car inspection what they did to the car? What mods they made and if they declared it.. And if they meet those above standards? Hmm? I think many many cars in uk incuded yours would be seized.. All or most guys here has so many mods in their cars, which are not mentioned in insurance documents.. Am I right?
All what we changed it would have to go BACK to audi factory and would had to be properly tested to meet the safety standards.. Even if you change the bumper ..! Or many ppl replacing thimeir steering wheels bcos they want flat bottomed and messing with airbags.. Dat is absolutely out of standard..
Or replacing brakes discs .
All is risk.. Not just ****** seat belt ... Nobody cares about you or me, what will happen to us, but what will happen to others..