OK, apologies up front if this has been posted already, but it's so funny that I had to ensure it was here somewhere:

Nebraska GM Modern Muscle :: View topic - Turbo Questions

(mods please remove if you think unsuitable, but make sure you read it yourselves first...)

This is a thread from an American car forum, where some bright spark advocates pumping the exhaust gases straight back into the intake manifold. Genius !

The thread, sadly but inevitably, degenerates into a verbal slanging match after a litle while, so please don't read if you're easily offended by strong language.

A more sanitary version is on Wikipedia, but it may not last long...

Direct Exhaust Injection - Wikipedia, the free encyclopedia

Si