2005 Acura RSX
So I just installed some Megan race headers (long tube so cat was deleted), and I got a custom exhaust made. I am running a 2.5 inch piping with a resonator and 4 inch muffler. I've been running this setup for about a week and its been pretty bad. It has an annoying raspy noise from 2k rpm. And it just sounds super ricey. At idle it sounds good and around 4rpm it sounds better. But the metal rattling sounds like complete ear rape and I miss just having my old sound back. I thought headers would make the car's sound improve overall. My question is how to get rid of this noise with the current setup and how to delete this sound and just kinda going back to a nice deep kinda throaty sound.