5.9 magnum intake performance

I have run the single plane MPI intake on several stock or near stock vehicles(on everything from a 5.2 to a 408 )and it really didn't show me anything that would make me believe its worth the astronomical prices they charge for them. As far as I can tell you give up a lot of low end for some minute gains on up the RPM range that you will hardly ever utilize. Watch your tach and see how much you ever get over 4000 rpm(which I would bet is not much)and that should tell you which intake is better suited for the job. You do gain a slight weight advantage(10-15 pounds) like that matters in a Ramcharger. You can make a real gasket and plate for the bottom of the keg intake so it wont blow and save the megabucks they want for the MPI single plane to use for other improvements. Just my pretty well explored opinion, good luck