I recently pulled up to a BMW and was intrigued by how nice it looks. Has anyone replaced there window molding with that kind of shine and if so where?

what are you exactley talking about? i have no clue, can you show some pics

i stripped the vinyl off my lower ones, sanded them the hit the with a nice thick coat of gloss black rustoleum they actually look really good here are the pics

I appreciate those pictures... that might be a route I have to take

Notice the chrome in these bmw, this is something I would like to accomplish if possible

getting them in chrome will be expensive, but possible. There are paint and body people that have the talent and resources to paint or chrome dip just about anything with the right tools... so its POSSIBLE... but EXPENSIVE...

and if not done properly it will either flake off later or tarnish/dull/turn silver lol

id think the black paint option would look sharp with a good paint and some couple layers of clear so its nice and shiny ... plus save on $$$

your call tho
Good Luck
- TL

so i could use dupicolor black plastic spray with a couple coats of clear...

what number grit should i use to sand them down?

i used 400 worked really well and a power sander cheap lil $20 black and decker

The trim pieces you are all talking about are called "belt line moldings"