Getting back to the question at hand, IMO, since the Dutra Duals are available for "around" 500 bucks, that makse the Hyper Pack manifolds worth about the same. Unless you have an original Hyper Pack car missing the manifolds. For the practicality and functionality, the Dutra Duals are every bit as good and possibly better, so to ME that diminishes the original Hypar Pack manifolds value a lot.
