So I have a 1996 E380 and have been working on my list of to do winter projects and I'm now starting on the engine items, new engine mounts, recondition heat exchanger etc. The engine is a Yanmar 3JH2E that has a mechanical fuel pump (with manual primer lever) and a primary Racor fuel filter with the manual priming pump. However, the boat also has a electric fuel pump between the Racor and the engines mechanical fuel pump. It seems to be non OEM add on and wondering if I need it and any pros or cons of having it.