Has anyone tried ZZP's "Pro Kit" for pacesetters?

I'm lookin to do an upgrade, but not sure how far I want to go. I thought about doing headers, but if the front PLOG is all that really matters on 04+ (is it since we don't have the u-bend?), why not just do that and leave the rest stock? I'm in Ohio and we have to have a cat. I don't think i'll be doing any other upgrades (unless somehow I can support a smaller pulley) other than this as I'm buying a house soon and a child/spawn will shortly follow... not to mention... I have a wife watching the bank account