The FB20 engine had coil-on-plug ignition with an integrated igniter for each cylinder.
The exhaust manifold for the FA20E and FA20F engines was made from sheet metal and had hydroformed branch pipes.
Around the block, the flow rate was limited to maintain a high temperature for the cylinder liner oil, thereby reducing friction from the motion of the pistons.
Furthermore, the EJ20X and EJ20Y engines had two ignition coils one for each pair of cylinders, i.
Subaru EZ30R engine Model Engine Trans.
AVCS and Variable Valve Lift The EZ30R engine was fitted with Subaru's 'Active Valve Control System' AVCS with Variable Valve Lift, a combination sometimes referred to as AVCS+.