Evidently Tom Hoover and the Dodge Ramchargers engineers thought it was worth the effort since they came form the factory on all the Max Wedge and Hemi cars in the early 1960s. The system was designed so that the primary emphasis was on the design when the cut outs were used (soft angled big pipes right to the cut out, and the rest of the system was an almost 90 degree turn off that pipe. This as opposed to a simple turn off for a cut out from a system designed for the overall exhaust system. I am sure that the tuning was done with the cut outs open, and how that fell when they were capped and the whole system was used was an afterthought.