So I have a 00 Civic Ex. Exhaust is stock except for the Aero 2540i muffler. Now I can't be happier with the sound outside, but the interior noise, especially at certain speeds, gets quite loud and kind of annoying. I've had it for about 5 yrs now and am kind of over it. The look is great and I would like to keep it if possible, but need to know, is there anything I can add/change to the rest of my system to help with the interior noise?

If not, does anyone have any suggestions of a decent looking/sourding muffler that is not obnoxious inside the car?

Thanks!

 

Dynamat on the floor of your trunk would help. If you want a new exhaust, Apexi World Sport system or a twin-loop exhaust. Some magnaflow exhausts are designed to not resonate in the cabin. Or you can just open the window and let the vibrations escape the car.