Re: Help me!
Just to confirm... The LARGE item in the middle of the car is the MUFFLER... Don't let ANYONE tell you different. Some aftermarket cat-backs are reversed (2 mufflers, 1 or no resonators)
The resonators near the end of the car can be removed and "Drone" will occur...
Drone a harmonic "hum" that happens at certain RPMs.
There are many factors that make drone happen. The resonators are there to remove this very thing.
I cut replaced both resonators with straight pipe on my Charger and I do have drone at about 1800-2000 RPMs. This doesn't bother me for 2 reasons.
a) the exhaust sound has a little more life without the resonators... for instance, when I start the car, I can here that V-8 "gurgle" MUCH better.
b) the stereo can be turned up to overcome the drone. ;-)
When I get more aggressive muffler/exhaust, I will probably put resonators back on (not the OEM but something fitting the muffler/catback)