Trying to Eliminate Drone. Need Another Opinion.

MuuMuu101 said
Those are all way too long. I don't have a straight piece of exhaust tubing underneath the car that is long enough for even the shortest Powerstick. I think my longest straight before the muffler is 18". Anything before and after that is bendy. Although, they said you can add resonators in the back to help with drone (See attachment - last 3 words of big paragraph).

Again, what you need is a helmholtz. The only straight section needed is for an easy attachment pipe. They can be perpendicular, you can bend them to run parallel to whatever wackiness you have under there, it can even be a non-tubular chamber (although the math may change a bit).

No more drone!

The above link addresses specifically the issue you describe.