I just have a quick question about my exhaust. I recently installed a Apex N1 CB (It is brand new). Just lately when I'm idling a strange sound comes from the exhaust(kinda sounds like a truck jake braking but not as loud?) Now this doesn't happen all the time, just every once in awhile, kinda annoys me though. For the noise to stop I have to rev. But I'm clueless as to what this noise is......Any help????

jake braking? is that like engine braking or what?

I was referring to the sound that it makes. Such as a Semi-Truck decelerating.(Like its bogging down) Im not sure...... Sorry for the bad description