Will the OBX long tube headers made for 03-06 non HR motors fit our HR heads and bolt up. I have read that a certain combo of old 03 headers with 03 cats will fix later cars. Since the long tube is both, it may work. Or is some modifying of the header able to be done. This option seems like the ype of header worth using. Comments, input please.

 

no they won't.
Fast Intentions is working on LT headers. They said they'll look into modifying their LT's for the sedan.

 

^^^^^^^
I asked Tony about these already . . have a look @ 242&243 :

http://myg37.com/forums/intake-and-e...teaser-17.html