Advanced Fuel Dynamics FlexLink Flex Fuel System
Fits 2014-2018 6.2L V8
We earn a commission if you buy through links on this page. Prices are the same for you. Full disclosure
Price tracked 8 times since Jul 26, 2026: low $399, high $399, currently $399.
where to buy · 2 retailers tracked
A flex-fuel system adds a sensor and controller that let the factory ECU safely recognize and adapt to ethanol-blended fuel (like E85) instead of just gasoline.
why this one — This shared 5.3L/6.2L SKU works for either engine on the 2014-2018 truck, both makes confirmed by name in the product title. FITMENT AMBIGUITY FLAGGED: AFD's own page states fitment as "2014-19" without breaking it out by engine or by trim; since the 6.2L engine was never offered on the 2019 Silverado 1500 LD / Sierra Limited K2XX carryover (per this catalog's own vehicles table, that trim is 5.3L L83-only), the "19" portion of AFD's stated range is treated here as unverified for the 6.2L specifically and this row is scoped conservatively to 2014-2018 only.
Advanced Fuel Dynamics' own product page states "Expect 7-8% more power at the wheels" along with "more torque for hauling and towing" and "lower cylinder, oil and coolant temps."
Running E85 can affect powertrain warranty and requires E85-compatible fuel-system components downstream.
Questions about this category
Gain shown is a manufacturer claim, not a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See our affiliate disclosure.