BioPerformance markets a gas pill. The BioPerformanc website states claims "The gas pills have the property of modifying the fuel’s molecular structure and liberating the energy contained within"
BioPerformance was been shut down under temporary restraining order by the Texas Attorney Genenerals Office - May 17, 2006 In 2007, the Texas Attorney General ordered owners Lowell Mims and Gus Romero to pay $7 million dollars in fines.
According to reps, BioPerformance is active and is now operating in Utah. See BPI Worldwide for more info.