^ Yep. That's what I would do.
You may be able to "tune" some of the drone out with a resonator, but it's basically trial and error until you find the proper location in the system, as well as the right resonator. Even then, it still won't be a drastic difference. My 1G 3" was loud, the 3" system on 1813 was loud, and so is the 3" on 1837. Least, that's my experience. 3" systems are just loud...The end. You can try a resonator, but I really think sound deadening material like the stuff posted above would yield better results for the money.