|
Well, I'll jump in for a first post on this forum. I have a Miata, and recently was rear ended. I trimmed the rear bumper cover to remove the damaged section. Conventional wisdom on miata.net is that the rear bumper acts like a parachute catching air that is flowing under the car. Anyway, after removing the lower section of the bumper cover I can see about a 1 mpg improvement in mileage on the highway, measured with the scangauge.
|