most companys dont change little things to keep cost down. i assume that the manifold should bolt on.... why make more part #'s if u can share parts keeps cost down. the most simple thing to do is compair exhaust gaskets to see if they line up on hell even have the same part number.
most stock turbo manifolds are a log style so you would have to make a custom down pipe to fit it.
i seen that a few companys make forged piston sets and rod for it too
http://cgi.ebay.com/ebaymotors/Manley-I-Beam-Connecting-Rods-Hyundai-Genesis-Coupe-2-0-_W0QQcmdZViewItemQQhashZitem519060c4d4QQitemZ350314611924QQptZMotorsQ5fCarQ5fTruckQ5fPartsQ5fAccessories![]()
http://cgi.ebay.com/Forged-86-5-mm-Pistons-Hyundai-Genesis-Coupe-Turbo-/300437223536?cmd=ViewItem&pt=AU_Car_Parts_Accessories&hash=item45f3743870![]()
it's probably the same shape, but a different material to handle the higher temps.
I am about to be 4DoorForte on Gencoupe.com LOL.