turbocharger

This may be a stupid question, but since the intake and exhaust manifolds are the same one the 6.2 and 6.5 (at least that's what i've gathered) then wouldnt an h1/van turbo bolt straight onto one of the exhaust manifolds. Then if need be the rest of the piping and tubing could be custom cut and...

Is this another "Throttle body spacer" type scam? Universal "Turbo fan" sits between the air filter and TB, and uses electric power to push 5 bars of air into your engine. Looks very shady, I almost dismissed the thought until I read Audi started using a similar set up. What do ya'll think?