I know this is completely oposite question but I was just wondering.
I dont say my engine is noisy but just a thought...

 

if you want to make the interior quieter you can add some sound deddining material. There is a product called dynomat that is used in car stereo instilation that car be added under your carpet to reduce outside noise. You can also add "great stuff" foam in a can to your frame rails and "A" pliiar areas to reduce outside noise from entering the interior of the car.


good luck!