iamdub
Full Access Member
There are a lot of threads throughout the site with people deleting the rear resonator on the 15-20 GM SUV’s and experiencing terrible drone.
This thread here with the OP’s experience above is in fact the first and only time I recall anyone stating they had no drone.
I wonder if AFM and the active exhaust valve are the difference in the K2xx? I could barely tell a difference with mine deleted ('08) and I had to really listen.