Epic two-weapon fighting

[ChimericDream]

I know about the Perfect Two-Weapon Fighting feat in the Epic SRD, but I seem to recall seeing a feat that removed the -2 penalties in addition to granting the 4th attack. Am I making this up in my head, or can someone point me to the book it's in?

 

[ChimericDream]

Anyone?

 

[saucercrab]

Doesn't the tempest PrC from Complete Adventurer remove the -2 penalties? Pretty sure it doesn't grant a 4th off-hand attack, though.