BMW E36 M3 Bumper Brake Intake Duct Set (Left and Right)
$24.99
You could add a small set screw if you are worried about it falling off at high speeds (tested up to 110 mph without screw). Replaces parts BMW part number 51712233361 (51-71-2-233-361) and BMW as BMW part number 51712233362 (51 71 2 233 362).
