Borla exhaust resonating

[Myklos]

are you still using your stock resonator? cat?

I know it is VERY common with Flowmasters...

do you know the specific Borla muffler?

I am running an Random Technologies downpipe with a high flow cat. What I have is the Borla catback system #14803 so the stock resonator came off with the stock exhaust. I do not know what borla muffler is used in the catback.