Originally Posted by twisty
whats the benefit of using the dohc heads from a 2.5 on the 2.2?
The 2.2 sohc heads flow terribly subarus worst flowing heads... The dohc heads flow sooo sooo much better alowing for more power, better fuel economy and a cooler engine cause the exhaust flows way better having 2 ports unlike the sohc heads that both cylinders share one port. So like dohcej22e1 said better power and mpgs witch Both are nice plus's