4AGZE's never come out 20v, a 4AGZE engine is a 16v twin cam 1.6l supercharged engine a 20v engine in a N/A engine and has quad throds..

i like to think the 4agze is better as it has standard forged pistons and and has the extra power from the forced inductoin

$1200 is a cheap price for ones of these as you will find all engine importers r charging heaps as they r get hard to find in japan