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Advanced Fuel Dynamics FlexLink Flex Fuel System

Fits 2014-2018 6.2L V8

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gain
7-8% more power at the wheels hp
manufacturer claim
AFD's own stated figure; not converted to an absolute hp/tq number
$ per hp
$50-57/hp
manufacturer claim · gains don't simply stack
price
$399
install
2/5 difficulty · ~1 hr
Buy at Advanced Fuel Dynamics

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.

heads up

Running E85 can affect powertrain warranty and requires E85-compatible fuel-system components downstream.

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.