So I've been reading about swapping over to the later 2nd gen "01-02" fuel canister/filter. I am curious just how much better the later model canister flows compared to the original? Will the current filter set up that is on the truck keep my fuel pump from adequately fueling the injection pump? Thanks.

I would not think that the old style versus the new style flows any better. The new style is just easier to change. Of course it all depends on the filter media.

Fair enough. I just picked up a fleet guard filter to change it to. If I do the swap it wont be for a while, but I thought I would check into it also. Oh and a big thanks to you to Dripley as you were the first to reply to me on the cumminsforum when I had my initial VP44 issues.

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I have heard the filter in the 98-99 style wont flow as much fuel but I have never had a problem with mine. I recently added vulcan's big line kit to mine and it really didnt change anything from watching my fuel pressure gauge.

Don't quote me for the exact number but the old school filter can is about 35 GPH vs 75 GPH for the new style drop in. This of course is number for stock fuel system and stock plumbing.

So will the old style fuel canister hinder the flow to the VP that this pump will be putting out?