Nothing wrong with the inline filter but be sure to check up on it every 3000 miles. I'd only run one if I had an appropriate failsafe/flow sensor.
In a worst case scenario, the filter gets clogged and you have no meth flow, without a flow sensor you won't know.
These meth pumps are strong, if it failed, it was failing eitherway. A small filter is not enough restriction to over work these pumps.