Fuel-It! G8X S58 Flex Fuel Kit S58FLEXFKIT

G8X S58 Flex Fuel Kit

This complete flex fuel kit installs in under 30 minutes and reads your exact E85 mixture in the Fuel-It! smartphone app or JB4 app if equipped. Features CNC machined fittings for a quick plug and play installation with nylon sleeved stainless steel braided fuel lines for life long leak free operation. The complete kit includes the following: Genuine Continental ethanol sensor Fuel-It! Bluetooth Universal Analyzer 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 One wiring harness with Posi-tap connector Supports stand-alone Bluetooth operation with the Fuel-It! app **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.
Fuel-It! Fuel-It!
T#: 8061332 | Part#: S58FLEXFKIT
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
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479.00 $479.00
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Est. Ship Date:
on Jun 19, 2026
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Fuel-It! G8X S58 Flex Fuel Kit S58FLEXFKIT
G8X S58 Flex Fuel Kit
$479.00

This complete flex fuel kit installs in under 30 minutes and reads your exact E85 mixture in the Fuel-It! smartphone app or JB4 app if equipped. Features CNC machined fittings for a quick plug and play installation with nylon sleeved stainless steel braided fuel lines for life long leak free operation.

The complete kit includes the following:

  • Genuine Continental ethanol sensor
  • Fuel-It! Bluetooth Universal Analyzer
  • 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
  • One wiring harness with Posi-tap connector
  • Supports stand-alone Bluetooth operation with the Fuel-It! app

**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.

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


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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 G80 M3 S58 3.0L Use vehicle selector to confirm fitment
BMW G80 M3 Competition S58 3.0L Use vehicle selector to confirm fitment
BMW G80 M3 Competition xDrive S58 3.0L Use vehicle selector to confirm fitment
BMW G82 M4 S58 3.0L Use vehicle selector to confirm fitment
BMW G82 M4 Competition S58 3.0L Use vehicle selector to confirm fitment
BMW G82 M4 Competition xDrive S58 3.0L Use vehicle selector to confirm fitment
BMW G83 M4 Competition xDrive S58 3.0L Use vehicle selector to confirm fitment
BMW G87 M2 S58 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.