Exhaust shutter/rumble
Hello Everyone! This is my first thread ever. I have an 2011 Ram 1500 ST Hemi. I put an dods14 muffler and replaced the resonator with custom tailpipie. Now I notice sometimes at the height of the RPM range as its shifting it let's out a loud shutter/rumble from the exhaust. It's a brief sound, but doesn't compliment the nice exhaust sound that's there throughout the RPM range. Does anyone know what that is or has the same thing going on with their



