Air and Fuel› Fuel Injection Systems and Components - Electronic

ElfexFuel

eFlexPlus E85 Flex Fuel Conversion Kit

$799.00

SKU: U-EF-PLUS

In Stock
In Stock
Ships by Jul 29
Free Shipping
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The eFlexFuel eFlexPlus is an E85 flex fuel conversion kit for the Mercedes-Benz C63 AMG M156 engine. It allows the vehicle to run any blend of E85 and gasoline seamlessly. The system is fully automatic, adjusts fueling in real-time via a smartphone app, and installs without modifying the factory ECU or triggering check engine lights.

Fitment

Fitment Guaranteed

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on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandElfexFuel
Part NumberU-EF-PLUS
CategoryAir and Fuel

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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