Good point! Stan obviously did some fairly lengthy research on the pros and cons of removing the intake resonator. The keyword here is "resonator". It's possible that the resonator is there to help smooth out the pulsations and any reversion that may take place in the intake tract by effectively tuning the intake piping to the engine. Plus, depending on how the air flows through the chamber in the resonator, it may help protect the AFM against damage from an intake backfire. At any rate, you can swap it out for a length of pipe and if you don't like the results just put the resonator back. Or perhaps check into buying one of Aaron Garneys' intake kits which has shown great results on the dyno and has replaced numerous stock intake pipes.