BoostedWhipz/HRS for the Sedan. I have them listed on ebay: https://www.ebay.com/itm/HRS-BoostedWhipz-2016-20-Honda-Civic-Sedan-LED-Tail-Lights-V1-Smoke/164331698027?hash=item2642eeb76b:g:VMwAAOSwQdJfMaoC
Could possibly be just a normal noise I suppose. Just seems odd that it happens at the same rpms in every gear but I guess that could be just how the engine works. Are you hearing the same sound from the video I uploaded? I hear it clearly from the front end when I have the windows up and music off.
Was the dealership able to diagnose the problem for you? Based off what you're describing, I believe I'm having a similar issue. Check out my video in this thread: https://www.civicx.com/forum/threads/strange-noise-when-decelerating-from-4000-to-3500-rpms.52461/
Same noise with the A/C on and off. Not sure what could be wrong since its pretty much a new car.. Maybe the previous owner didn't break it in correctly?
Hearing a strange noise (2019 Type R) from the front end when decelerating from 4000 to 3500 rpms in every gear and goes away when on the throttle. If not in that range, you don't hear the noise. It sounds like some sort of whirring/metallic noise.
Took it to Honda and they said they could not...