forum.audiv8.com Foren English Audi V8 Forum NITROUS SYSTEM for Audi V8 ???

Hello out ther !
I have a Audi V8 4,2 (ABH) Quattro with Aut. i think i want to install a Nitrous system on it BUT !!!
Is ther some one ther have try a Nitrous (NOS) system on the V8 (3,6 / 4,2) ??
or is ther some one who know somthing abut how much more HP the 4,2 energine can take without to be to dangerus for the energine and other parts ?
Is ther som one who knows about a home page for this car where this is install ?