I saw this on another forum. I do not know how true it is.
H-D CEASES SALES OF PERFORMANCE DEVICES THAT ADD TO AIR POLLUTION
Without conceding, Harley-Davidson will pay $15 million in fines and penalties to settle a federal lawsuit brought by the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Justice (DOJ) accusing the American motorcycle-maker of selling illegal performance devices that increase pollution.
Under terms of the settlement on Thursday, August 19, 2016 Harley is to stop selling its "Screamin' Eagle" Pro Super Tuners by August 23, and to buy back and destroy all such tuners in stock at its dealerships. H-D must also deny warranty claims if owners continue to use the "illegal devices."
The consent decree resolves government allegations that Harley-Davidson sold roughly 340,000 "super tuners" since 2008 that, once installed, cause motorcycles to emit higher amounts of certain air pollutants than what the Milwaukee-based manufacturer certified to the EPA. According to the EPA, the modified settings increase power and performance, but also increase the motorcycles’ emissions of hydrocarbons and nitrogen oxides.
Harley did not admit liability, and said in a statement it disagrees with the government's position arguing that the devices were designed and sold to be used in "competition only." The Motor Company said the settlement represents "a good faith compromise with the EPA on areas of law we interpret differently, particularly EPA's assertion that it is illegal for anyone to modify a certified vehicle even if it will be used solely for off-road/closed-course competition."
An EPA spokesman said that the vast majority of these tuners were used on public roads, and the sale of such "defeat devices" violates the federal Clean Air Act. Harley was also accused of selling more than 12,600 motorcycles that were not covered by an EPA certification that ensures a vehicle meets federal clean air standards.
"Given Harley-Davidson’s prominence in the industry, this is a very significant step toward our goal of stopping the sale of illegal after-market defeat devices that cause harmful pollution on our roads and in our communities," said John Cruden, head of the Justice Department's environmental and natural resources division.
The EPA has been investigating after-market part emission issues for more than five years. In 2012, Suzuki Motor Corp paid an $885,000 fine to EPA for selling 25,458 ATVs and dirt bikes because they were built to allow for the installation of an after-market part that increased horsepower and emissions.