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I did on mine. It made a huge difference.
There's a lot of tricks and ways of analyzing your spark plugs, exhaust, etc. to tune a carb in. But nothing takes the place of actually being able to see the AFR on the gauge.
The one I got had a graph option so you could see the last several seconds of driving on it, as opposed to having to instantly watch the numbers change. Made it a lot easier to see lean spikes / rich bogs, etc.
This Hennessey Takes the Expedition Tremor's Off-Roading Capability to the Next Level
Slideshow: The VelociRaptor Expedition gains a lift, upgraded suspension, Brembo brakes, and trail-ready equipment while retaining the stock 440-horsepower EcoBoost V6.
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.