I bought a 3m set from my old work for about 15 bucks. It did work quite well considering how terrible they were. I've spent far to many nights on the beach with the salt water blowing on them so any improvement was a step in the right direction.

Be sure you really tape the heck out of your bumper though. I wasn't as careful as I should have been and there is now a little white were there should be gray. Not really noticeable, but I know it's there.
_________________________
Whoever it was that thought it was a good idea to put the alternator on the bottom of the engine owes me somewhere around 500$