ive read so many diff ways of changing the header. i have injectors and exhaust and a intake on the jeep. ive read i can use a HO header and y-pipe and a HO 02 sensor and wire extention? what are my other choises here? mine is cracked and i have to pull the head anyways for work.

 

Renix manifold is kind of a header style already. I don't think there are much, if any choices for headers, unlike the HO. I think you just end up buying OEM manifold replacement.

Someone correct me if I'm wrong, because I would like another option myself.