SKU: 18701180552

AutoMeter GS 52mm AFR or LAMBDA Digital Wideband Air/Fuel Ratio PRO Wideband A/F Kit (3878)

Sale price$196.54 Regular price$218.38
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Ships within 48 hours · Estimated delivery Sep 1 - Sep 6

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Description

AutoMeter GS 52mm AFR or LAMBDA Digital Wideband Air/Fuel Ratio PRO Wideband A/F Kit (3878)Knowing The Exact Air Fuel Mixture Running Through Your Engine Is The Most Important Factor To Extracting The Highest Levels Of Performance And Durability. Not All Wideband Gauges Are Created Equal. Autometer Utilizes An Advanced Calibration Method That Automatically Calibrates Your Gauge On Every Startup To Assure You Of The Highest Degree Of Accuracy Over The Entire Lifespan Of Your Sensor (No Free Air Calibration Is Ever Necessary). Compatible With

Knowing The Exact Air/Fuel Mixture Running Through Your Engine Is The Most Important Factor To Extracting The Highest Levels Of Performance And Durability. Not All Wideband Gauges Are Created Equal. Autometer Utilizes An Advanced Calibration Method That Automatically Calibrates Your Gauge On Every Startup To Assure You Of The Highest Degree Of Accuracy Over The Entire Lifespan Of Your Sensor (No Free Air Calibration Is Ever Necessary). Compatible With Nearly All Fuel Types, The Autometer Pro Wideband Has A Configurable Display To Pinpoint The Exact Range You Want To Keep An Eye On. An Advanced Peak Recall Function And Lean Warning System Make Sure You" Re Safely Making Power, Whether On The Track Or On The Street. An Automatically Dimming Display Tailors Light Output For Any Condition. Data Logging Output Is Included For One Wire Or Two Wire Systems In Both Lambda Or Afr. Our Specially Designed O2 Sensor And Wiring Harness Are Included For Ease Of Installation. Quite Simply, There Isnt A More Accurate Or Easy To Live With Wideband Gauge Available On The Market.

Features:

  • 0-4v data output feed for ECU, data acquisition unit, or Laptop tuning
  • 10:1 to 20:1 AFR range for gasoline applications
  • 12 and 16 volt compatible, compatible with nearly every street car or race car electrical system
  • Display data in Lambda or numerical A/F ratio
  • Gauge kit includes custom tuned .1 AFR Resolution Bosch LSU4.2 Sensor, 8ft. wiring harness, 304 stainless steel weld-in bung, mounting hardware, and detailed instructions for installation
  • Peak recall/memory
  • User programmable range for Rich/Stoic/Lean conditions
  • User Programmable Warning Function

 

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 18701180552

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Amazon Customer
Louisville, US
★★★★★ 5
Just what I needed
Size: 8.26" x 5.63" x 2.24"
Great value and great quality
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Reviewed in the United States on May 3, 2026
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Robin Babcock
Bozeman, US
★★★★★ 5
Perfect fit
Size: 8.26" x 5.63" x 2.24"
A little difficult to access but the University of YouTube helped with that. Filter fit perfectly.
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Reviewed in the United States on May 27, 2026
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R D K
Phoenix, US
★★★★★ 4
Easy replacement
Size: 8.26" x 5.63" x 2.24"
Reasonable price
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Reviewed in the United States on September 8, 2025
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William Abruzzo
Lake Worth, US
★★★★★ 5
Kona Air Filter
Size: 9.33" x 6.29" x 2.08"
Very satisfied, it fit perfectly!
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Reviewed in the United States on March 31, 2026
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rcevans
Belleville, US
★★★★★ 5
Engine air filters are important!
Size: 8.26" x 5.63" x 2.24"
Just like me and you breathing, your car performs better when it can breathe freely and cleanly. My philosophy with an engine air filter is to replace with cheap and often. You can't control the quality of air coming into your system but you can control the filtering, so I'd rather replace the filter on an accelerated schedule with a cheap product than to invest into something more expensive and have it perform dirty for longer than it should. For my Honda CRV 2024 Hybrid, this filter fits snuggly and performs well.
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Reviewed in the United States on December 1, 2025

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