Changing fuel pump solely because "it looks original", but leaks no fuel and makes no loud noises [although loud pump still could work nicely] is simply waste of time and money. As for "uprated pump" - yeah, if you have an engine with at least 200 bhp and you're going to hit 300 bhp mark, uprated pump will be necessary, but in case you still have stock engine, again, waste of time and money.
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