Active Autowerke Rotrex C38 Level 2 Upgrade Kit - E46 1999-2005 328 / 330
US$ 2319.85
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Ships within 48 hours · Estimated delivery Aug 5 - Aug 10
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Description
Fuel-It! Bluetooth Flex Fuel Kit for B58 BMW M340iIf you're running E85 or ethanol mixes in your 2019+ B58 BMW M340i you need this kit! This is a complete plug & play kit to install a Bluetooth ethanol sensor in your 2019+ M340i in about 30 minutes. (Check compatibility for your platform below) Know your exact ethanol content in real time via the Fuel it! or JB4 app on your smartphone or tablet. The kit includes the following: Genuine Continental ethanol sensor Two stainless steel braided fuel lines
If you're running E85 or ethanol mixes in your 2019+ B58 BMW M340i you need this kit!
This is a complete plug & play kit to install a Bluetooth ethanol sensor in your 2019+ M340i in about 30 minutes.
(Check compatibility for your platform below)
Know your exact ethanol content in real-time via the Fuel-it! or JB4 app on your smartphone or tablet.
The kit includes the following:
- Genuine Continental® ethanol sensor
- Two stainless steel braided fuel lines with black nylon sheathing to protect your other engine bay components
- Proprietary custom billet fittings for plug and play OEM integration
- Fuel-It! Bluetooth analyzer (iPhone or Android app must be purchased to use this kit)
- Plug and play harness
-
Includes both Bluetooth App & 5v analog output for JB4 or flash tuning
- Bluetooth (iPhone or Android app must be downloaded to use this feature)
- If you are using an Apple product the app can be found by clicking here
- If you are using an Android product the app can be found by clicking here
This kit is compatible with the following
- 2019+ G20/G21 BMW B58 M340i
*We have also made it optional to purchase all the items ala-cart should you choose but for the kit to work it must include the Fuel Lines, Ethanol Sensor, and Analyzer.
*For the BMW G-series JB4 platform connect the white wire to position #4 on the JB4 25 pin harness. Select WMI page option 2/3/4 input to enable.
*If you aren't sure whether this kit fits your car, send us a picture of your engine bay with the engine cover removed to [email protected]
*Ethanol Sensors don't actually read the ethanol content, the readings are based on the absence of gasoline, so if your fuel is contaminated your ethanol readings may be artificially elevated.
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 6 reviews
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Product Reviews
★★★★★ 5
Great tee
Size: X-Large, Color: Medium Grey Heather
It’s a nice cotton material…not thin, just perfect. After washing, it also kept its shape.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 18, 2026
★★★★★ 5
Wonderful t-shirts
Size: X-Large, Color: Medium Grey Heather
These t-shirts are well made and have a nice thick feel to them. The sizing is spot on.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
★★★★★ 5
Unpaid and honest review
Size: Small, Color: Navy
Nice fit ,lightweight ,good quality and very very affordable ,comfy.Recommended
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 10, 2026
★★★★★ 4
Runs small
Size: XX-Large, Color: Navy
Definitely go a size up. These run a whole size smaller than designated. Material is also heavier than a regular t-shirt. Quality seems okay
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Fits well and comfortable!
Size: Large, Color: Eggshell White Black Mariner Stripe, Size: Large, Color: Eggshell White Black Mariner Stripe
This shirt fits my husband very well, it is true to size. It is soft and stretchy enough to be comfortable. I bought this as part of a costume but my husband wears it around the house now because it's so comfy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 24, 2025
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