Such as Kumho tires, Red Line Oil, Koni, etc, etc.

Hey if it's a "race car" it may as well look like one

Look around town.. cuz vinyl people can make just about anything..

For camaro and Firebird specific try Brent Franker.
http://www.bfranker.badz28.com/vinyl/vinyl.htm

He does not have much for name brands though.

Oh, yeah - Summit has the grab of stickers too.

No experience with them but here you go:

http://solotime.com/default.asp?page=1691

The first place I would try would be the manufacturer. They love free advertising. And it probably wouldnt cost you a dime.

Order anything from Summit and you usually get a pile of stickers. I believe they actually have a sticker package they sell too!

http://www.protapesigns.com/

I have used them a number of times with good results. Great work, reasonably priced, and great to deal with.

I got mine from solotime (previously mention). put them on reusable vinyl from there too. I got Koni, Bilstein, Mobil1, Sunoco (US logo) Race Fuels (Canadian Sunoco is owned by Suncor Energy... and uses a slightly different logo - don't ask), a pair of US flags (normal + reversed field)