15's on a 00 Z28
 

i see alot of people on hear with 15 in MT's on the site.
i didnt think you can fit 15's around the brakes.
do i need to shave down the cooling fins on my rear calapers?

yes, you must grind down the calipers, especially on ls1 cars

Search is your friend.

Depending in what wheel setup you go with, It will vary on grinding.

A new version of the Street light ( 15x10) By Billet Specialties Does not require grinding of anything on the rear, The Fronts at this time due require some Grinding as a front wheel is still in development.

here is the thread i have them on special in. https://ls1tech.com/forums/wheels-tires/968873-direct-fit-ls1-wheels-stock-ready-ship.html

Here is the thread with Pictures. https://ls1tech.com/forums/sponsor-sales-specials/969000-billet-specialties-direct-fit-street-lites.html