these are new for us here, they should fit just fine but i wouldnt waste the money on them. unless you get the OBX, your not gonna get much of a gain from the Y-pipe which, especially NA, is where your improvment is needed.
http://cgi.ebay.com/ebaymotors/OBX-E...item2558fcbf3b
this Ypipe is the main reason to get these over the ones you have shown, these are copies of the JPP headers and Ypipe which are proven to improve HP. thoes you have in the link look liek they are the JPP style headers(which dont help much anyways) and a facotry style Ypipe.