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IE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5

Marsoni M251S
Sale price$231.00
Pay 4 payments of $57.75 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
IE TrueFlex Sensor Kit For Audi B9 S4, S5, RS5, RS4, & SQ5LEADING FEATURES Plug & play kit for iE B9 3. 0T & 2. 9TT TrueFlex Tunes Includes everything needed to install Reliable real time ethanol content readings Run premium 91 93 up to E85 on one tune EFFORTLESS ETHANOL Ethanol is rocket fuel for your B9 S4, S5, RS5, RS4, or SQ5. Our iE TrueFlex Sensor Kit is the required hardware upgrade to convert your 3. 0T or 2. 9TT engine to flex fuel. The sensor hardware allows your factory engine computer to read and
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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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4.6 ★★★★★
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Product Reviews
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Verified Purchase
Judy Fletcher
Dallas, US
★★★★★ 5
No slip low socks
Number of Items: 3, Color: Black/White (3-pairs), Size: Medium
Perfect! ❤️ these!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
S
Verified Purchase
Susan
Los Angeles, US
★★★★★ 4
Stay put!
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
Nice and thin, soft, and stay put. I wear an 8 shoe and don’t like a thick sock taking up room. These socks are a bit tight on big toe. Wish they came in large.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 10, 2023
S
Verified Purchase
Stephanie Robnett
Carnegie, US
★★★★★ 5
The best
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
The best no show socks I have found. Stay in place very well and hold up wash after wash. I have tossed all the other brands I’ve bought over the years and stocked up on these as I was tired of digging through the drawer hoping to find a clean pair.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 8, 2024
G
Verified Purchase
Ginni
Louisville, US
★★★★★ 5
Love these.
Number of Items: 3, Color: White (3-pairs), Size: Medium
I have them in black and white. I use them everyday in all shoes. These are very versatile and a great quality material. They take a looong time to wear and they stay in place. Very washable and good material. They are not too thick and they do not shrink. I do air dry mine. They do not hold smells even in the summer heat.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 7, 2024
M
Verified Purchase
Maria White
San Leandro, US
★★★★★ 5
Perfect!
Number of Items: 3, Color: Pink Quartz Assorted (3-pairs), Size: Medium
My new favorite socks! True to size, fit perfectly, and the best part is they do not slide off your foot! 10/10 recommend!
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Reviewed in the United States on July 10, 2025

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