K&N Gauges

K&N air/fuel monitors are precision instruments designed to help performance enthusiasts calibrate an optimum air/fuel mixture ratio. The devices will work on carbureted, injected, supercharged, or turbocharged engines using unleaded gasoline, alcohol, propane or nitrous oxide. They won't work with nitromethane or diesel fuels. Using one of these instruments to monitor an engine's air/fuel mixture ratio, a tuner can adjust for power, economy, and/or improved drivability.