we build them for drag cars but noone comes to mind that bought one for a turbo v6.i have a billet shaft drum and transbrake for it as well.they so far have held 600 horsepower reliably without n20 or turbocharger so far.the pimp is not a constant displacement type therefore it doesnt have the problems (if you consider them problems)associated with the varible displacement vane type used in the 2004r.