for below the 328 bumper.. you know the black grate thing for looks by the exhaust outlets..
Could you be looking for the 328 black aluminum grate that looks like this that surrounds the exhaust tips?: If so, contact Italian Car Parts or Ricambi. Image Unavailable, Please Login
Look at this thread, these guys might have one off one of their 328's they are parting out. http://www.ferrarichat.com/forum/showthread.php?t=195413&highlight=wheel Jeff