Editing How I got rid of my muffler problem.

I see lots of articles on my XXXXX aftermarket exhaust drones..... tons of them.

I have awful or awefulnews for you. It is going to drone. But the good news, it can be fixed (albeit at a cost).

Drone is the amplification of noise via a resonant frequency. When two object vibrate at the same frequency there is an accompanying increase in amplitude. In this case the amplitude is volume. It's annoying, but it happens. It's actually a product of substandard engineering and trying to save money on production costs. It happens because identical mufflers are used in both sides of the exhaust. They #link# resonate at the same frequency. When you hit that frequency, in this case engine rpm, they make a wonderful woo woo woo growling sound. It's great for short periods of time, but while highway cruising it can become very annoying.

The cure is simple, and some OEMs use this technique. The Ford 5.0 engine had horrible drone when originally produced right at highway cruising speed. The solution was to use two different sized mufflers. They in turn had different resonant frequencies. Cool huh? So you can change one of your mufflers and the drone will disappear. Different internal structure or baffling would do the same thing. Ford installed two different muffler sizes on the old 5.0 Mustangs. You will need a tape measure to verify this.

I'm an engineer, but not an expert in wave theory. But if you want to know what horrible resonance looks like then go to Youtube and search. Too bad your aftermarket exhaust manufacturers are relatively unaware.

Have a dronerrific day too.
[http://hankkurt41.soup.io/post/415149722/How-I-got-rid-of-my-drone Exhaust Drone]