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FAST Air/Fuel Ratio Meters

4.13 out of 5 stars 23 Customer Reviews

Proper engine tuning is essential to achieving maximum performance and avoiding costly, premature engine failure. Get the most advanced, user-friendly measuring tec
Proper engine tuning is essential to achieving maximum performance and avoiding costly, premature engine failure. Get the most advanced, user-friendly measuring technology in the industry. FAST air/fuel ratio meters can eliminate the unknown, allowing you to tune carburetor jetting and EFI profiles with confidence and complete accuracy.

Features include:

* Built-in data logger with on-screen playback, outputs for external data loggers and digital gauges
* Narrow-band simulator function
* Lighted, full-graphic display makes them easy to use
* Available in a single-sensor version or a dual wide-band O2 version
Proper engine tuning is essential to achieving maximum performance and avoiding costly, premature engine failure. Get the most advanced, user-friendly measuring technology in the industry. FAST air/fuel ratio meters can eliminate the unknown, allowing you to tune carburetor jetting and EFI profiles with confidence and complete accuracy.

Features include:

* Built-in data logger with on-screen playback, outputs for external data loggers and digital gauges
* Narrow-band simulator function
* Lighted, full-graphic display makes them easy to use
* Available in a single-sensor version or a dual wide-band O2 version that can manage air/fuel in both engine banks simultaneously, or average them together for precise tuning

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Results 1 - 4 of 4

Meter, Air/Fuel Ratio, Gas Only, Rectangular, Digital, Electrical, Single Sensors, 12 ft. Cables, Kit

Part Number: FST-170401

4.67 out of 5 stars ( 3 )

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Meter, Air/Fuel Ratio, Rectangular, Digital, Electrical, Dual Sensors, 12 ft. Cables, E85, E98, Methanol, Each

Part Number: FST-170608

5.0 out of 5 stars ( 2 )

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Meter, Air/Fuel Ratio, Rectangular, Digital, Electrical, Dual Sensors, 22 ft. Cables, Each

Part Number: FST-170602

3.5 out of 5 stars ( 2 )

Estimated Ship Date: Feb 6, 2026 if ordered today

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Estimated Ship Date: Feb 6, 2026 if ordered today

Meter, Air/Fuel Ratio, Gas Only, Rectangular, Digital, Electrical, Dual Sensors, 12 ft. Cables, Kit

Part Number: FST-170402

4.0 out of 5 stars ( 16 )

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