That's not for a 4.6......

 

Should work though, I've heard members getting 5.4 headers for their 4.6. Problem is the 4.6 being shorter, headers might be close to the heat shield and stuff like that. I dunno, should be fine or at least able to be "adjusted" to fit.......

 

there was a member here that put the obx's on his 4.6. To me it seamed more hassle than what it was worth. I believe his name was jackal.

 

the EGR bungs are also different size and location on the 4.6

 

what about the catted mid pipe that will work with the OBX header and can you hook into a magnaflow x? or something simliar?

 

I have OBX long tubes on my truck. The OBX cats will make you throw codes, trust me I know. Also don't use Ford gaskets, the Ford manifold flanges are a different ID shape as the flange of the OBX's and they will not seal properly and leak, again trust me I know. The OBX gaskets work fine.

 

Thanks for the input guys. Does anyone know of any other long tube headers that would be a direct bolt on and that will keep me emmisions legal. Arizona is a pain when it comes to emmisions and thanks again for the information its greatly appreciated.

 

http://www.sparktecmotorsports.com/f...t-headers.html

That is the correct set of headers for a 07 HD. Just pick what option(s) you want.

I run OBX catless in AZ and use Gotts O2 mod for emissions. No check engine light so it passes the test easily.