I would recommend a Corsa exhaust. I come from the Corvette world and C4-C7 vettes are know to have terrible drone issues with aftermarket exhaust, but Corsa has a sold reputation of producing drone free exhausts.My 2024 392 has nasty drone/resonance. Mostly on decel and going down hills but also on gentle upshifts. My 2021 was totally fine but my 2024 is almost unbearable. Not sure why. I almost never drove with the exhaust off in my 2021, but I'm doing it a lot in my 2024. Anyway, I'm considering taking mine to a custom exhaust place to see what they can do. I do not know a ton about exhausts so any pointers you all could provide would be appreciated. Aim would be to keep the same volume/tone and get rid of the drone.