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Grams Performance Wideband Air/Fuel Ratio Gauge
Grams Performance Wideband Air/Fuel Ratio Gauge
Grams Performance Wideband Air/Fuel Ratio Gauge
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Grams Performance Wideband Air/Fuel Ratio Gauge

Marsoni M251S
Sale price$105.97
Pay 4 payments of $26.49 a month.Shop Pay
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") 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.
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  • 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.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 714 reviews
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Product Reviews
G
Verified Purchase
George
San Leandro, US
★★★★★ 5
Good fit and price for a 2017 Honda Civic
Been using these in my Honda Civic for a while now they work great no complaints
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
Z
Verified Purchase
Zander
Cuba, US
★★★★★ 5
pretty good for price!
Great item with easy install, drops right in for a perfect fit! the quality is up there for its money, but certainly isn’t going to be your top of the line. however it gets the job done and has a prettt decent air flow for its price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 13, 2025
A
Verified Purchase
AB
Cuba, US
★★★★★ 4
As expected
Fits perfectly and last long
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 15, 2026
B
Verified Purchase
Bob Jagielski
Lexington, US
★★★★★ 5
Looks just like OEM
Fit great in 2018 Honda Civic. Easy to install and looked just like the OEM one (but much cleaner). Would recommend
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 17, 2025
D
Verified Purchase
dtho
Massapequa, US
★★★★★ 5
2025 honda civic sport gas engine.
Perfect for 2025 honda civic sport gas engine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 28, 2025

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