Racers are always looking for an edge, right? check this.
Ok they look cool or their hideous or they can't work? Is one of these statements you?
Well the answer here is yes they do work. Aeropsace industry spends millions researching things like this and their finding have put these type of devices in different variations on planes all over the world from small to large.
NASA says they work (NO, not THAT NASA, the space guys LOL):
And they give a race car a more aerodynamic shape to cut through the wind (always helpful) and they look bitching to I think.
Check them out and order them here:
And for a lousy $20.00 for the set of 10 why not try them?