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Ships within 48 hours · Estimated delivery Jul 19 - Jul 24
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Description
FAST Single Sensor Wireless Air / Fuel Meter Kit # FAST170301FAST Single Sensor Wireless Air Fuel Meter Kit # FAST170301 NEW FAST Wireless Air Fuel Meter Kits Allow You To Measure Your Engine's Air Fuel Ratio Directly From Your Smartphone! We have revolutionized the tuning industry with the most advanced, app based, wireless air fuel meters in both dual and single sensor options. The FAST Wireless Air Fuel Meters use an under hood mounted Bluetooth module, connected to oxygen sensors in one or both of your
FAST Single Sensor Wireless Air / Fuel Meter Kit # FAST170301NEW FAST Wireless Air/Fuel Meter Kits Allow You To Measure Your Engine's Air/Fuel Ratio Directly From Your Smartphone!We have revolutionized the tuning industry with the most advanced, app-based, wireless air/fuel meters in both dual and single sensor options. The FAST Wireless Air/Fuel Meters use an under-hood mounted Bluetooth module, connected to oxygen sensors in one or both of your engines exhaust outlets, giving you the full story on the state of your engines tune. With the dual sensor unit, you can read both wide-band oxygen sensors individually, or average them together for super accurate readings of the engines true air/fuel ratio.
Easy to use with any iOS or Android device, the FAST Wireless Air/Fuel Meter App includes a simple, built-in data logger that records up to two minutes of air/fuel and RPM data. Fuel calibrations are preloaded for measuring gasoline, all popular ethanol blends, methanol, diesel and more. Advanced features include 0-5 volt output for external data loggers and digital gauges. Additionally, a selectable module output is provided that can be used as an RPM activated window switch, a lean air/fuel ratio safety cut-off or an innovative anti-theft feature that allows you to manually activate/deactivate a vehicle immobilizing relay - a simple way to protect your vehicle from theft!
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.3 ★★★★★
Based on 28 reviews
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Product Reviews
★★★★★ 5
A Game-Changer for Comfort
Size: Medium, Color: Black, Number of Items: 6
I recently upgraded my workout gear with the Under Armour Training Cotton Quarter Socks, and I must say, these socks have revolutionized my exercise experience. Comfortable, durable, and stylish, they truly stand out in the crowded world of athletic socks.
First and foremost, the comfort level of these socks is unparalleled. The blend of cotton and synthetic materials provides a soft and plush feel against my feet, making every step a pleasure. The quarter length strikes the perfect balance, offering ample coverage without being too restrictive or too short. It's like walking on clouds, even during the most intense workouts.
One of the standout features is the moisture-wicking technology. I've worn these socks during high-intensity cardio sessions, and they have consistently kept my feet dry and comfortable. The breathability is remarkable, preventing that uncomfortable feeling of sweaty feet that often accompanies strenuous workouts. No more distractions – just focus on pushing through your fitness routine.
Durability is another strong suit of these socks. After numerous washes, they maintain their shape and elasticity, showing no signs of wear and tear. The reinforced heel and toe areas provide extra support, ensuring longevity and preventing the dreaded sock holes that often plague other brands.
The sleek design of the Under Armour Training Cotton Quarter Socks adds a touch of style to my workout attire. The subtle logo and choice of colors make them versatile enough to pair with any athletic shoes. Whether you're hitting the gym, going for a run, or simply running errands, these socks seamlessly blend fashion with function.
In terms of sizing, I found that they fit true to size. The elastic band around the arch provides a snug yet comfortable fit, ensuring that the socks stay in place throughout any activity.
While the price point may be slightly higher than some other options on the market, the quality and performance of the Under Armour Training Cotton Quarter Socks more than justify the investment. When it comes to comfort, durability, and style, these socks have become an indispensable part of my workout wardrobe.
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Reviewed in the United States on January 3, 2024
★★★★★ 5
good medium rise sock
Size: Large, Color: Black (6-pairs), Number of Items: 6
love a good under armour sock!
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Reviewed in the United States on June 2, 2026
★★★★★ 5
Well made
Size: Large, Color: Black (6-pairs), Number of Items: 6
These are the only socks that my 12 year old Grandson will wear. He's very picky. LOL
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Reviewed in the United States on March 2, 2026
★★★★★ 5
Comfort and durability
Size: Large, Color: White (6-pairs), Number of Items: 6
Socks work really good. I have very rough and dry feet that tear up my bed sheets. They hold up to my destructive feet. They are soft and comfy!
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Reviewed in the United States on December 14, 2025
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026