Location issue for resonators

I have a significant drone between 1900 and about 2200 RPM, which happens to be highway cruising speed for my Duster. I bought a pair of bullet-style resonators in an effort to reduce/eliminate the drone, but am challenged by where they will fit without significantly reducing my ground clearance. The only real place where there is space is about 18 -20 inches after the collectors on my shorty header (which would be ahead of the H pipe). Will they still be effective there?
Running a 5.9 magnum, TTI shorties, 2.5 inch exhaust and Dynomax Super Turbos.

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