Exhaust drone help

[Elcamino409]

New here and new to Chevy. I was always a ford guy but after 100k and 11 ball joints I decided to buy a Chevy. I have a 2011 silverado z71 with 40k miles. I have the super chips flashcal with the afm shut off and my main problem..exhaust. I cut the stock muffler out and put in a flowfx with a 3.5 inch tip. The drone was awful. I always ran flowmaster mufflers. The next day I ordered a borla 19 inch pro xs muffler and put it on today. It's a lot quieter which is great, I'm 30 not 20, but there's still drone between 1800 and 2000 rpm. As a kid I was into modding cars but not so much anymore so this is where I ask for help. I have never had an issue putting a muffler on and getting a good sound but this drone is annoying. So before I spend more money, that I dont have,  or start welding stuff to my exhaust I'd like some help lol.

 

I have been searching the internet all week for an answer.

[CamGTP]

Resonator.

 

Add one and it should make all go away. Vibrant make an ultra quiet resonator in 3in, should match the factory piping just about perfect. Everytime I installed one it removed the drone and didn't hurt any sound.

[Elcamino409]

Alright I'll look into that. I have always used a 40 series flowmaster and never a full exhaust so this is a bit different to me. After driving to work and back today I am a lot happier with the borla muffler than the flowfx. The flowfx sounded like a mini van that lost a muffler.