5-Year Limited Warranty
All Emission Control Optimizer "ECO" Systems come with a 5-Year Limited Warranty from the manufacturer. If within that term any defect occurs with your unit due to manufacturing, Emissions Technology Inc. will replace the unit purchased.

90-Day Money Back Guarantee
All systems also come with a 90-Day Money Back Customer Satisfaction Guarantee beginning from your date of purchase. If you are not satisfied with our product, return it to the location where you purchased it within 90 days for a refund of the purchase price, except for installation charges that were paid if applicable.

Our Insurance Policy
Our Liability Insurance Policy (pdf)

Your Vehicle Warranty
Adding an ECO Fuel Systems Fuel Enhancer will not affect your vehicle warranty. It is specifically against the law to prohibit after market devices.

Magnuson-Moss Warranty Act