Subaru's FB20 was a 2.0-litre horizontally-opposed (or 'boxer') four-cylinder petrol engine. Effectively replacing the EJ204 engine, the FB20 engine was a member of Subaru's third generation 'FB' boxer engine family which also included the FB25, FA20D, FA20E and FA20F engines.The FB20 engine first offered in Australia in 2012 Subaru GP/GJ Impreza. The EJ201 and EJ202 engines had an aluminium alloy cylinder head with cross-flow cooling. Unlike the EJ20 engine, the intake ports for the EJ201 and EJ202 engines created a ‘tumble swirl’ motion for air as it entered the cylinder for better mixing of the air and fuel for. Subaru uses a four or five character code to identify all of their engines.. The first letter is always E standing for engine (before the introduction of FB engine series); The second letter is the engine's family. Next come two digits indicating the engine's displacement (or revision before 1989) The EJ201 and EJ202 engines had an aluminium alloy cylinder head with cross-flow cooling. Unlike the EJ20 engine, the intake ports for the EJ201 and EJ202 engines created a ‘tumble swirl’ motion for air as it entered the cylinder for better mixing of the air and fuel for. Taylor Little Pea Sheller Pan- …