For a while there was.
Pac Brake made an updated and slightly stronger version of theirs. People justhad to have the better one and would sell the old one with the install kit from the new one.
I got one of those about 10 years ago for about $400.
Banks, Pac, BD and others make kits for around $1400~$1500 and aren't too bad to install if your a little bit handy. The scariest part is adding a pin to the ECM connector. Not hard, but you can't make mistakes.
I would avoid the Jake brand brake.
What ever you get, you're going to like it!