Mahle Forged Pistons? Help with part #s

[05duallyon22s]

I'm having a hard time trying to figure out if there is a difference between

http://performancemachinemfg.com/i-...r-piston-set-for-6-0l-powerstroke-diesel.html $562

and

http://performancemachinemfg.com/i-...r-piston-set-for-6-0l-powerstroke-diesel.html $800



Obviously they are not the Chromoly Forged $2700 ones.

But has anyone heard of these? I can't find info on them. Mahle has no idea.

Performance machine says "good for 300hp over stock" they use them in their stage 2 and 3 Crate motors.

Or are they just the Ford OEM opposed to cheap cast replacements?

 

[Spatel23]

The only input I have here is dont order from them

 

[05duallyon22s]

The only input I have here is dont order from them

fair enough, I have seen the same stuff at other places, this was just an easy link.