Has he kept the E30 engine in that M3 or is it a later model engine? Prob my fav M3 those!

Its still a 2.5 4 pot.As Johnny says over 300BHP
Think of it as a 1990 DTM car poured into a road car shell. Every single part has been modified. Its one of those "complete" cars i.e. Everything is better.
Trick GrpA suspension with different mounts
Wish I could find a decent pic of his engine bay for you guys.
http://s14power.com/video/ring_lap3_sept_07.wmv
Video (with shaky handheld) if you're interested.