Hey guys does anybody know if headlights like A5 or S5 (with LED) exist for Audi A4 2007?

Kind Regards

 

Just a note: the headlights in the A5/S5 are not LED lit, the only LEDs are the DRLs (daytime running lights). The only front-end LED lights Audi currently produces are the DRLs on the R8, S8 and A8-W12 as well as the front turn signals on the S6. All 2008 "8" and "6" models have LED tail lights while the "8" models also have LED turn signals in the side-view mirrors.

You can not retrofit LED into your headlights and achieve the proper luminocity. Even if you did and could overcome the heat and electronics requirements you wouldn't be DOT legal in any state.