N1 or Racing medallion?
you want quiet and youre looking at these two options? youre barking up the wrong tree brother.
if you want quiet with good performance you should look at the Mugen twin loop. its expensive as hell but its gonna be a hella lot quieter than either of these two.
I bought the Tanabe Hyper Medallion. For a stock hatch this is probably the quietest youll find. I have a 97 CX and the closed coupled catalyst also helps to quiet things down. Its VERY nice quality. its lighter than stock...but not as light as the racing medallion. it LOOKS GREAT and pollishes to an amazing shine. i paid $415 for mine on EBAY. i dont know if i would recomend going thru ebay for something like that. shipping was only like $35. so far it has been great for me.