toomey actually told me just to find a silicone #223 o-ring anywhere, this one seller on ebay has 15 of them for 4.25 after shipping, so i know somewhere i can get one for like $2 bucks shipped. i wouldnt care but i can feel a small leak from the flange/header, not a big one, but i want it right. i might just get the 15 of them, cause so far, its the cheapest. that or the silicone sealant, but im afraid of what will happen when i try to remove that.