good evening I am currently setting up a mexico beetle and decided to change some things a bit. I don’t want to tinker the car with modern mist and also not lose the h-mark. I have already telephoned with tüv examiners, these unfortunately went out of the way of a consultation or gave me only very superficial information. what can I change according to the latest regulations without losing the h? I would have been at discbre Msen at the front axle, old recaros in black leather, back bench in black leather, a black sky, kamei front spoiler, fox rims, us-backlights, actually nothing there was not in the 70s and 80s. it should just be tuned in line. is there an h or not?