THE DEFINITIVE GUIDE TO 4AGE 20V FOR SALE

Regardless of Other individuals claim of the 20HP or even more enhance- on modified heads on your own, this is just not possible without camshaft or pistons improved. Toyota has casted and machined all their 4 valve heads to extremely shut and precise tolerances for Road (and rally) use.That is what the resistor pack on some variations of your 4AGE