An AlterKation unit is OK but a stock K-Member can be modified to work with a Gen 2 Hemi without a lot of mods. I've had both and either worked well. If's it a "class car" you have to use the stock K-member.
Depending on the choice of heads will dictate the use of "store bought" headers or the need for custom built pieces. In some instances the "store bought" headers may require some mods (hammering) in order to fit.
