Description

M&H resonator 2.5″ x 18″ fibreglassed packed exhaust silencer 4db lower spiral louvre core mild steel black finish 18″ body , 23.5″ total length 3.5″ diameter
Fibreglassed packed
Spiral louvre core
4db lower
The main distinction is that a muffler is designed to muffle the overall volume across all RPMs, whereas a resonator is designed to eliminate unwanted resonance or noise at a particular RPM, also known as exhaust drone. This is why you see some auto manufacturers using a combination of both resonators and mufflers right from the factory. Mufflers do a great job of softening an exhaust note or obtaining a particular tone, but sometimes there could be leftover drone at a certain RPM. Thats when a resonator is used to target that RPM and deaden annoying exhaust drone.
If you have an annoying drone out of your aftermarket exhaust system but really like the exhaust note, a resonator could fix your issue. Without really affecting the overall volume or exhaust note, a well-placed resonator can eliminate the drone that we all know and cant stand. Resonators compliment mufflers by reducing annoying drone and providing a smoother exhaust note.