eFlexFuel guarantees its products are free of manufacturing defect for 2 years of use. If you wish to extend the limited liability warranty to 5 years, please register your product here.
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Attention Californian customers!
eFlexFuel products are not legal for sale or use on pollution-controlled vehicles in the state of California. Every reference to on road highway use on this site applies to other markets. We insist that our customers always make sure to follow their local rules and regulations.