hey guys i have a jet black bmw, do u think if i paint some sideskirts with gloss black you could tell the difference?

yes you will. This is the best I have come up with. If you are going to use spray can paint, then use this. I don't know if thats your plan or not.
http://i5.photobucket.com/albums/y164/qidm67/100_4826.jpg
http://i5.photobucket.com/albums/y164/qidm67/102_4822.jpg

i was going to use rustolumen but is the color of that spray jet black or is it glassy black

hey guys i have a jet black bmw, do u think if i paint some sideskirts with gloss black you could tell the difference?
There are just a million shades of black just like there are a million shades of white.
You don't want some car nut sitting in the other lane at a light looking at your skirts thinking that the black doesn't quite match and it's too bad because the car looks so sharp otherwise.
The solution is easy really. Go to paintscratch.com or one of those companies and buy a couple of cans of spray paint in your colour. They'll make the cans for you.
It'll be more expensive than rustoleum but a million times less than a body shop paintjob and it'll be perfect, and each and every day, you'll thank yourself for doing the job right.
-John C.

^^^^true ^^^^^