When you add up the cost of an ecu, turbo and manifold, intercooler and piping. It makes you think, it would be worth spending the $700 bucks on forged 20V pistons? http://cgi.ebay.com.au/TOYOTA-TURBO-4AGE-2...1QQcmdZViewItem
I've heard GZE pistons ping like a bitch in a 20V unless alot of tuning is done. I'm in the process of getting a 4AGTE together, thought about going down the 20V road, but considering I want to run a megasquirt, I figured a Low K gze bottom end would be cheaper to kill than a turbo 20V item.