Fuel-It! Fuel-It! Flex Fuel Kit - G2x/G3x/G4x B58 GB58BFFK

Fuel-It! Flex Fuel Kit - G2x/G3x/G4x B58

The complete kit with Bluetooth ECA includes the following: Genuine Continental® ethanol sensor Two stainless steel braided fuel lines with black nylon sheathing to protect your other engine bay components Fuel-It! Bluetooth analyzer (iPhone or Android app must be downloaded to use this kit) Plug and play harness Includes both Bluetooth App & 5v analog output for JB4 or flash tuning *For the BMW G-series JB4 platform connect the white wire to position #4 on the JB4 25 pin harness. Select WMI Ethanol Setup option 0 to enable pin location 2/3/4 flex fuel input. *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.
Fuel-It! Fuel-It!
T#: 21209864 | Part#: GB58BFFK
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
Checking Vehicle Fitment...

Please ensure your correct model is selected

Does NOT fit your Change Vehicle

Fits your Change Vehicle

Change Vehicle

479.99 $479.99
Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Free Shipping on orders $49 and up
Availability:
Ships Directly From Supplier
Est. Ship Date:
on Jul 28, 2026
Qty
Add to Wish List
Facebook Twitter Pinterest Google+ Email Price Alert
Fuel-It! Fuel-It! Flex Fuel Kit - G2x/G3x/G4x B58 GB58BFFK
Fuel-It! Flex Fuel Kit - G2x/G3x/G4x B58
$479.99

The complete kit with Bluetooth ECA includes the following:

  • Genuine Continental® ethanol sensor 
  • Two stainless steel braided fuel lines with black nylon sheathing to protect your other engine bay components
  • Fuel-It! Bluetooth analyzer (iPhone or Android app must be downloaded to use this kit)
  • Plug and play harness
  • Includes both Bluetooth App & 5v analog output for JB4 or flash tuning

*For the BMW G-series JB4 platform connect the white wire to position #4 on the JB4 25 pin harness.  Select WMI Ethanol Setup option 0 to enable pin location 2/3/4 flex fuel input.

*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.

 

Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.


Prop 65 WarningProp 65 Warning

Product Q&A

Lifetime Replacement

This Product Is Covered By Our Lifetime Replacement Program

Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.

If you have any questions, would like to learn more or are ready to place a replacement claim, click here!

MAKE MODEL SUBMODEL ENGINE Special Fitment Notes
BMW G20 M340i B58 3.0L Use vehicle selector to confirm fitment
BMW G20 M340i xDrive B58 3.0L Use vehicle selector to confirm fitment
BMW G22 M440i B58 3.0L Use vehicle selector to confirm fitment
BMW G22 M440i xDrive B58 3.0L Use vehicle selector to confirm fitment
BMW G23 M440i B58 3.0L Use vehicle selector to confirm fitment
BMW G23 M440i xDrive Convertible B58 3.0L Use vehicle selector to confirm fitment
BMW G26 M440i xDrive B58 3.0L Use vehicle selector to confirm fitment
BMW G30 540i B58 3.0L Use vehicle selector to confirm fitment
BMW G30 540i xDrive B58 3.0L Use vehicle selector to confirm fitment
BMW G42 M240i B58 3.0L Use vehicle selector to confirm fitment
BMW G42 M240i xDrive B58 3.0L Use vehicle selector to confirm fitment
*The above product applications have been written by Turner Motorsport. All warranties, product application, fitment, and performance are the responsibility of Turner Motorsport. For additional information see the terms of use.