Not to be outdone by the dukes air horn, I'm offering a high tech fuel saver salvaged from a 1977 Ford F150. And yes the F150 passed emissions with flying colors. Gas prices are low but they won't stay that way for long. Get this while it's hot. Amazon claims up to a 24% increase in fuel economy and lower emissions. Popular Mechanics testing showed a 10% horsepower increase vs the tornado vortex generator. You just can't refute results from independent testing like this. Only $9 ($1 less than the Dixie trumpet)
http://www.amazon.com/Fuel-OptiMiser-FS ... op?ie=UTF8
http://www.popularmechanics.com/cars/a310/1802932/