HOLY JESUS! with a side of ghost I hate when I don't look on the site for a few days!

okay I just want to check on a few things. I can put just the headers on my and use the stock Y, but does it matter if I have an ATX? cause these remove all the heat shields and everything and god knows the ATX burns warm already. Oh and when you call do you tell them which flange you have? 3 or 2 bolt?

1998 SE Duratec V6 ATX Ebay intake with K&N Filter Trubendz Exhaust Custom Hood