Guarantee, Warranty, Insurance, CARB

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, we 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)

California Air Resources Board Executive Order, June 29, 2016
CARB EO-D-227-2

California Air Resources Board Executive Order, August 18, 2023
CARB EO-D-227-3

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.

Cummins Warranty Letter_Signed.pdf

U.S. Federal Magnuson-Moss Warranty Act - Summary.pdf

Magnuson-Moss Warranty Act Article pdf