Upgrade Your BMW N54 Flex Fuel Setup to a CAN Bus installation with EASE!
For customers with the original Flex Fuel for MHD on their BMW N54, we’ve designed an upgrade harness to pair seamlessly with the new FlexFuel+ system. This kit makes installation straightforward and hassle-free.

Here’s how it works:

1. Remove your existing Flex Fuel for MHD controller.
2. Install the new FlexFuel+ controller and the upgrade harness.
3. Connect the upgrade harness to your existing harness.
4. Attach the CAN Bus jumpers, reflash your MHD, and you’re ready to go!

For full installation instructions check out the user manual and information HERE.