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Attention: You are purchasing closed course competition Product(s)

I acknowledge that the product(s) being purchased () was/were designed and intended for closed course competition use only. The product(s) is/are neither designed nor intended for use on public roads or land and is against Federal and State regulations to do so. By proceeding with this purchase, I , agree to only use the product(s) for closed course competition.

If an ECU tune was purchased, please send your unmodified and undamaged OEM ECU to TST Industries, located at 623 Pleasant St, Lake Helen, FL 32744.

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U.S. customers are offered a free shipping option for orders with a discounted subtotal greater than $150.00 (before taxes applied). The order's shipment destination must reside within the United States of America. The free shipping options still utilize our standard postage providers and 3rd party shipping companies. Does not apply to large items such as exhausts, stands, and bodywork shipping. All terms and conditions that apply to normal orders will continue to apply to orders with a free shipping option.

NO RESTOCKING FEES:

An item returned within 30 days of purchase, that includes an accurate RMA#, in a perfectly new, unopened condition, and that complies with our other return policies, will not be charged a restocking fee.

MOST QUESTIONS ABOUT THIS PRODUCT CAN BE ANSWERED ON THIS PAGE.

The most common product related questions are answered in the tabs section on this page. Be sure to carefully read through the "Product Details", "In the Box", and "FAQs" tabs. In addition, a lot of our products have comprehensive videos demonstrating installations and product features. You can find those videos in the "Videos" tab.

Note: Some product pages may not have all the tabs mentioned above. Please read through all the available tabs to find the answers to your questions. If you still need assistance, please use the "ASK A QUESTION ABOUT THIS PRODUCT" button below the tabs section.
NO ADDITIONAL COST: You pay at the time of checkout and never have to worry again.
COVERAGE: Our Limited Extended Warranty starts on the date of purchase. It covers all manufacturer defects for our TST Exclusive products. (Products manufactured by us with the exception of our WORX products)
EXPERT HELP: As always our team is here to help. If you’re unsure about this warranty or if your product is eligible, feel free to reach out to us and we can help answer any questions you may have!
PRODUCT ELIGIBILITY: TST will offer our Limited Extended Warranty on all products manufactured by TST Industries.
EASY CLAIMS PROCESS: Simply click the “Contact Us” page and fill out the “Returns Form” to begin the warranty process. Once our team receives your email and initiates the RMA, you can send your product back to us and we will repair/replace the product at no cost as long as a manufacturer defect is found. What qualifies as a manufacturer defect? Check out our Terms and Conditions for some examples!

aRacer AF2 Professional Wideband AFR Module

  • aRacer AF2 Professional Wideband AFR Module
  • Reliable, precise, and high speed AFR readings.
  • What's included.
  • AF2 Wideband AFR Module by aRacer.
  • Bosch LSU 4.9 wideband oxygen sensor.
  • Plug and play harness enables easy installation to your aRacer ECU.

aRacer AF2 Professional Wideband AFR Module

aRacer AF2 Professional Wideband AFR Module

aRacer's upgrade AF2 Wideband O2 AFR Module packs a lot of upgrades over their previous version, including a Bosch LSU 4.9 wideband O2 Sensor for more stable, accurate, and faster readings. They also improved the connection to their ECUs by providing a harness that plugs directly into their ECU without the need for extra converters or adapters, so the install is faster and easier and you can get back to riding.

Returns are NOT accepted for this item and no warranty is provided.

Have a Question About This Product?
SKU RACER-1001=1
2013 - 2016/GROM/Honda
aRacer AF2 Professional Wideband AFR Module
 
Price: $319.99
Quantity

ATTENTION:

If buying this product as part of the Buy Together bundle below, define these options there.

▾

CLOSED COURSE COMPETITION ONLY
This item was designed and intended for closed course competition use ONLY. This product is neither designed nor intended for use on public roads or land and is against Federal and State regulations to do so.

  • Product Details
  • In the Box
  • Downloads
  • Recommended Accessories

Features

  • Reliable, precise, and high-speed AFR readings
  • No calibration needed - simply plug and play
  • BOSCH LSU 4.9 wideband oxygen sensor
  • Installs on 18mm O2 sensor bung
  • Enables "Closed Loop Fuel Compensation" with RC / RCMINI Plus ECU
  • Minimum operating voltage lowered to 8.5V

Description

aRacer improved upon every aspect of their outgoing AFR module with the introduction of the AF2. This smaller module provides more accurate and precise AFR readings with a much faster response and warm up time. The included Bosch LSU 4.9 wideband oxygen sensor improves upon the performance while the upgraded wiring improves installation with a simple plug and play connection to aRacer ECUs.

When comparing the AF2 to the AF1, the difference is clear:

  • 38% reduction in volume
  • 53% reduction in weight
  • 37.5% improved response
  • 80% improved measurement accuracy
  • 25% reduction in heading power consumption
  • 5% increase in maximum operation voltage
  • 50% faster warm up time
  • 56% increase in lifecycle span

Please note this item is not DOT approved and may not comply with the laws and regulations in your area. See our Terms & Conditions for more information.

Returns are NOT accepted for this item and no warranty is provided. Use at own risk.

  • (1) aRacer AF2 Professional Wideband AFR Module kit

Download or view aRacer AF2 user manual HERE
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WARNING: Cancer and Reproductive Harm - www.p65warnings.ca.gov

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Reviews

Total Crash Protection Pack for Kawasaki Ninja 400 2018-2023
Total Crash Protection Pack for Kawasaki Ninja 400 2018-2023
No one wants to field test crash protection, but am happy to day that these worked amazingly. Got run off the road into a construction wall, and aside from a chewed up clutch lever and some road rash on the fairings my bike is back in action.
Chris N.
Apr 20, 2024
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