Hey all - I recently had a roush cat back exhaust installed on my 2022 5.0 Coyote. I really like it - but there are some drone issues that are really bugging me. I chatted with someone at Roush that said to add a resonator above the muffler and that should handle some of that drone. I inquired from them on a specific resonator they recommend and they told me to work with my local muffler shop to figure that out. Anybody here have a good suggestion on a specific resonator to install on my system to reduce the drone?

Thank you!

 

I used a Vibrant Ultra-Quite resonator when I had a Cat back on My 3.5 Eco Boost F-150 and it worked really well!!

 

I checked the Roush website and there are 4 different cat backs listed. Which one did you get?