I think you'll find a concensus here about the factory pump vs. say a Melling.

That said, I have a Melling in my Turbo engine, but it was already there by the time I realized it <img src="/forums/images/graemlins/barf.gif" alt="" /> and it was too late to turn back.

Still, so far, so good. The oil pressure looks good and there are no funny noises. I just hope it holds up.

In as much as reusing a pump - well - I wouldn't do it. I know the arguments are compelling to do so, but, hell you've put a ton of money into the thing already. You knew going in that what you're doing isn't a budget rebuild. Shop the web or some other Mitsu. stores, but I'd replace the pump and I'd go OE.

Wish I had insisted...hindsight's always 20/20.