Oh yes, An them is good for just under 500bhp on std internals, (according to Vr6oc)
Do you know anyone running anthing close to that on standard internals?
I have two mates with VR6Ts, one around 360BHP (FWD, in a Corrado), another over 480BHP (4WD in a Rallye)...both on forged pistons and rods, but a standard crank. Neither run spacer plates.
Neither would ever suggest you can get 500 BHP on standard pistons/rods.
Maybe you can...for a matter of minutes.
There is so much bullsh!t and 'apparently's on the internet...speak to those who have built them and it's neither easy or cheap.
But boy, are they quick once done.