Side branch resonators?

[floridaboy]

Is anyone on here familiar with side branch resonators? I have been throwing around the idea of adding some to my 2001 GT that has BBK x-pipe and flowmaster 40s. I don't want to change the sound, just want to get rid of the 70-75 mph drone associated with the Flowmasters. Anyway I was reading about "side branch resonators" and found this Autolounge.net | Calculators | Exhaust Resonance and it says to add X amount of tubing to get rid of 2200 RPM drone. What about with the X pipe? is that still 4 cylinders per pipe, since it has a crossover? Thanks

 

[floridaboy]

Also when it says add X amount of feet, 2 feet for example, is that 2 feet per pipe or 2 feet over all? Thanks.

 

[RedDaemon]

LOL i love the test data the calculator uses. it wants you to add 8 feet of pipe!

theres a reason why theyre called "dronemasters" in the first place.