WDoherty
I got in contact with amsoil in the states. Ea034 is 4.7"long 3.02dia and has 7-10 psi bypass.
The Ea057 is 3.404"long 2.91diaand 8-10 psi bypass. This was the only real difference.
My dealer said internals are the same so just the bypass is different and the 034 is larger capacity.
In...