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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22
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Description
TGK Motorsport Flex Fuel Kit - Audi 4.0TSENSOR MOUNT BRACKET WILL NOT FIT WITH OEM AIRBOX The TGK Motorsport flex fuel kit is a plug and play solution to adding flex fuel on Audi 4. 0T Vehicles. Use of this kit is to add the ability to run anywhere from straight gasoline to E85 Blend as well as reveal the true power potential of your setup. Forced induction scenarios especially benefit from the use of ethanol, and these allow you to seamlessly switch between gasoline and ethanol without
SENSOR MOUNT BRACKET WILL NOT FIT WITH OEM AIRBOX
The TGK Motorsport flex fuel kit is a plug and play solution to adding flex fuel on Audi 4.0T Vehicles. Use of this kit is to add the ability to run anywhere from straight gasoline to E85 Blend as well as reveal the true power potential of your setup.
Forced induction scenarios especially benefit from the use of ethanol, and these allow you to seamlessly switch between gasoline and ethanol without having to monitor your fuel content or reflash your tune.
SPECS
| Application | Audi 4.0T |
| Fuel Compatibility | Gasoline to E85 Blend |
| Sensor Type | Continental Flex Fuel Sensor |
| Line Type | PTFE Lined Braided Lines |
| Installation | Plug and Play |
| Hardware Included | Yes |
COMPATIBLE FITMENTS
| Years | Make | Model | Engine | Chassis |
|---|---|---|---|---|
| 2010 - 2018 | Audi | A8 | 4.0T | D4/D4.5 |
| 2012 - 2018 | Audi | RS6 | 4.0T | C7/C7.5 |
| 2012 - 2018 | Audi | RS7 | 4.0T | C7/C7.5 |
| 2012 - 2018 | Audi | S6 | 4.0T | C7/C7.5 |
| 2012 - 2018 | Audi | S7 | 4.0T | C7/C7.5 |
| 2010 - 2018 | Audi | S8 | 4.0T | D4/D4.5 |
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
4.5 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
The best
Size: 9-11, Color: Black
Seriously the best non slip low cut socks you can find. They stay in place all day and I love the fabric. They are thin which I prefer. These are really the only socks I wear.
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Reviewed in the United States on March 27, 2026
★★★★★ 5
Great socks for the price!
Size: 6-10, Color: Black, Size: 6-10, Color: Black
I love these socks, they are perfect no shows but the material is thick enough for toes not too go thru. The grip is perfect and keeps the sock in place all day. I would definitely order true to size as the fit was perfect. I was surprised to find these socks at the price I did, especially when I got the socks in both black and white.
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Reviewed in the United States on December 9, 2025
★★★★★ 5
Best non-slip no show sock!
Size: 6-10, Color: Black
I love these socks! I wear them mostly with my slip on vans. The are thin so your feet can breathe (I hate thick socks). They have a grip on the heal so that they don't slip off of your feet, and it actually works! My only negative about these socks would be that if you have bigger than a size 8 foot, I would not purchase them because they do run a bit small. I wear a size 7 and they fit perfectly! They do look very tiny upon unpacking, but they stretch to the according size. I would also recommend letting them air dry after washing them and not putting them in the dryer. The first pair I purchased, I made the mistake of drying them and they shrank to an unbelievably small size. I've had my second set of socks for over 4 months now and have not had any problems since Ive been air drying them. I have not encountered any problems with them tearing as other have stated. Even though these are thin socks, they seem to be made quite well in my opinion.
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Reviewed in the United States on December 5, 2022
★★★★★ 5
I buy these again and again through the years!
Size: Medium, Color: Austin Brown Assorted (6-pairs)
Love these. After a year or two I wear holes in the bottoms because I wear them so much. Worth the little bit higher price because of the fit and comfort. Love how they are truly no show
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Reviewed in the United States on October 18, 2025
★★★★★ 4
Good quality but tight on toes
Size: 6-10, Color: White/Assorted
These are great socks that stay in place, but they scrunch my toes together like crazy. My feet are normal width. When I first started wearing them I noticed my feet would ache after an hour or two.
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Reviewed in the United States on April 26, 2026