


Grams Performance Wideband Air/Fuel Ratio Gauge
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Grams Performance Wideband Air/Fuel Ratio GaugeFor optimum power and safety, measuring your air fuel ratio is imperative when tuning. The Grams Wideband Air Fuel Gauge measures at 52mm (2. 047 in.) with an LED display that features a 3 color sweep from red, yellow to green. The Grams Wideband utilizes the latest Bosch(R) 4. 9 LSU sensor that displays an easy to read 4 digit display with speedy accuracy down to 0. 001.
Quick Dispatch:
Your Grams Performance Wideband Air/Fuel Ratio Gauge orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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★★★★★ 1
Only worked for 1 month.
Color: Black/Battery
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Reviewed in the United States on May 25, 2026
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Reviewed in the United States on June 6, 2026
★★★★★ 4
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Works Great!
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