I have had anilag available on my ECMLink for many years now. But I never activated it!
~15 years ago, when I had my own shop, I sold 16G turbo to a Gallant VR4 rally driver, who used antilag. He wanted to try out $600 turbo instead of $4k turbos they were normally using. He said it only lasted a few stages! He would have been happy if it lasted the entire event, but he wasn't that lucky.