Air and Fuel› Fuel Injection Systems and Components - Electronic

eFlexFuel

E85 Flex Fuel Conversion Kit

$999.00

SKU: eFlexPro

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The eFlexPro is an E85 flex fuel conversion kit designed for technical auto enthusiasts. It allows users to safely dial in ethanol fuel corrections and fine-tune fueling to create custom fuel maps based on vehicle modifications and performance. This kit enables your engine to run on E85, gasoline, or any blend of the two, automatically adjusting for optimal performance.
Show original supplier description
The eFlexPro E85 Flex Fuel Conversion Kit is engineered for automotive enthusiasts seeking enhanced performance and precise control over their engine's fueling. This patented kit allows for safe, DIY tuning of ethanol fuel corrections and the creation of custom fuel maps tailored to your vehicle's specific modifications. The system seamlessly operates with E85, gasoline, or any blend, automatically adjusting fueling to optimize performance and reduce engine temperatures. Key features of the eFlexPro include enhanced fuel control for precise ethanol delivery and upgraded control unit hardware for improved performance. It comes with an advanced wiring harness featuring two optional 0-5V analog inputs, allowing integration with external sensors like MAP, MAF, TPS, or WBO for detailed datalogging and tuning via the eFlexTuner Windows software. The kit also includes a patent-pending Virtual Load Sensor, eliminating the need to tap into external load sensors. Installation is designed to be clean and "under-the-hood," without interfering with the factory ECU or OBD system, and will not trigger a check engine light. eFlexFuel verifies your vehicle's E85 compatibility, including fuel injectors, fuel pump, and fuel lines. Everything needed for E85 conversion and DIY installation is included. While the kit offers fully automatic modes for convenience, its "Pro" capabilities are aimed at users who desire advanced tuning. Professional installation is recommended, with an estimated time of 3 hours for experienced mechanics.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandeFlexFuel
Part NumbereFlexPro
CategoryAir and Fuel

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Returns & Fitment

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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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

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