I received a resonator from Perrin and had an exhaust shop weld it with the mid-pipe. It greatly reduced the vibration. Thanks to the good tech support from Perrin!
I still hear some vibration sound once in awhile if I turn off the radio. I am debating if I should get a 2nd resonator? Or am I being too picky?
The tech support at Perrin told me that I was the first one to have exhaust drone with their products. However, the sales guy at GST told me that every aftermarket exhaust droned and the only way to get rid of the drone was to putting stock exhaust back. Their opinions are so night and day apart!
