And that Y pipe can be bought for about $20 to $25 cheaper elsewhere.
I just posted the first one I found, definitely didnt shop around for the cheapest one
And I will absolutely confirm that 4.0 headers work for other Jeeps. The problem with SOME headers is they have weird bends and it hits the older intake manifolds. The newer rounded intake doesnt make contact like that. Those pacesetter headers fit my friends 03 TJ and on that page it specifically says XJ. I see no reason it wont fit any Jeep with a 4.0. Specifically the pacesetter ones have a block hugger design instead of the ones with crazy loops for the pipes