Originally Posted by robitrice
i have a catless perrin DP and have zero drone i can hardly hear my car honestly. sometimes it is just the mind trick playing games on you. Inspect your resonator in the stock mid pipe for any holes or damage as well as the mufflers. I find it interesting you have a drone with the stock catback cause like i said i have the same setup and its hardly audible imo. Did you get a new donut gasket for the DP > CBE with a 3" adapter?
yep. new gaskets, donut and all. good call on the res