eFlexFuel

What eFlexFuel does

eFlexFuel (legally StepOne Tech Ltd.) is a Finland-headquartered hardware company, founded in 2012, that designs and manufactures aftermarket E85 flex fuel conversion kits enabling non-flex-fuel vehicles to run on E85 ethanol, gasoline, or any blend without modifying the factory ECU. Its product family centers on three conversion kit tiers — eFlexPlus ($799, consumer), eFlexPro ($999, tuners and professionals, now eFlexPro 2 with patented fuel control), and eFlexMoto (powersports) — plus the recently introduced eFlexGauge Core ($199), a standalone ethanol monitoring device. The proprietary VelvetTouch+ signal processing technology enables real-time ethanol content measurement (>100 readings/second) and automatic engine tune adjustment without triggering check engine lights; a Bluetooth 5.2-connected eFlexApp handles consumer monitoring and mode selection, while eFlexTuner Windows software serves the professional tuning segment. All hardware and firmware are engineered in-house in Pirkkala, Finland, with manufacturing and ISO 9001-certified quality control, and the company sells primarily through its eflexfuel.com e-commerce storefront, an authorized reseller and installer network, and regional sites serving North America and Europe.

The business model is direct-to-consumer hardware sales with three primary revenue streams: conversion kits (the dominant stream), accessories and spare parts (wiring harnesses at $159, ethanol sensors at $99, OBD readers at $129–$189, extension wires at $59), and the new eFlexGauge Core monitoring product. Customer financing is offered via Affirm (eFlexPlus from $61.50/month), and the company explicitly excludes California pollution-controlled vehicles from its core kit line, selling EPA-approved variants through eflex.eco. Customer segments are horizontal — performance car enthusiasts, professional tuners, powersports owners, fleet operators, and ethanol-monitoring drivers — supported by a top-of-funnel marketing mix dominated by YouTube influencer partnerships (ChrisFix, Mister Zachary, Shifted Official, DriftGeek, SW Speed), SEO-optimized vehicle-compatibility landing pages, and motorsports sponsorships including Kyle Mohan Racing in Formula Drift. The company reports 70,000+ vehicles converted and 2.9 billion+ miles driven with eFlexFuel installed, distributed primarily across the United States and Europe.

Name

eFlexFuel

Legal name

StepOne Tech Ltd.

Website

https://eflexfuel.com

Company type

Private

Founded year

2012

Operating status

Operating

Headcount range

11–50 employees

Short description

eFlexFuel (StepOne Tech Ltd.) designs and manufactures aftermarket E85 flex fuel conversion kits and ethanol monitoring devices, enabling non-flex-fuel vehicles to run on E85, gasoline, or any blend. Products are sold DTC and through authorized dealers to performance car enthusiasts, tuners, and powersports owners.

Ownership category

akta.pro rank

Product category

Automotive E85 Flex Fuel Conversion Kits

NAICS

Motor Vehicle Electrical and Electronic Equipment Manufacturing (336320)

SIC

Electronic & Other Electrical Equipment (No Computer Equip) (3600), Industrial Instruments For Measurement, Display, And Control (3823)

akta.pro primary industry

Automotive E/E Architecture Components Manufacturing (Domain/Zonal Controllers, Gateways, Network Switches) (IMACAJAI)

Keywords

• E85 conversion kits
• Flex fuel systems
• Ethanol fuel sensors
• Automotive performance parts
• Vehicle tuning software

Headquarters

HQ city

New York

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2C

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Technology or R&D, Marketing or Sales, Operations, Others

Revenue model

1. E85 Conversion Kits: Sale of hardware conversion kits (eFlexPlus, eFlexPro, eFlexMoto) that enable vehicles to run on E85, gasoline, or any blend. Vehicle-specific kits starting at $799. Primary revenue stream.
2. Accessories and Spare Parts: Sale of accessories including ethanol sensors, wiring harnesses, extension wires, quick connectors, OBD readers, and mounting hardware. Products like harnesses at $159, sensors at $99, extension wires at $59.
3. eFlexGauge Products: Sale of eFlexGauge Core ethanol monitoring device at $199 for drivers who want ethanol data without full conversion kit capability.

Pricing tiers

Go-to-market motion3 records

Distribution channels5 records

Marketing channels8 records

Core offering

eFlexFuel designs, manufactures, and sells E85 flex fuel conversion kits that allow gasoline-only vehicles to safely run on E85, gasoline, or any blend without modifying the factory ECU. The hardware ecosystem (eFlexPlus, eFlexPro 2, eFlexMoto) is supported by real-time ethanol sensing, a Bluetooth-connected mobile app, and Windows tuning software, with installation handled by DIY consumers or authorized installers.

Product overview

eFlexFuel offers a unified ecosystem of flex fuel conversion products enabling vehicles to run on E85 ethanol, gasoline, or any blend. The product family centers on three main conversion kit tiers: eFlexPlus (consumer-focused, $799), eFlexPro (tuner-focused with advanced tuning capabilities, $999), and eFlexMoto (powersports applications). The proprietary VelvetTouch+ signal processing technology ensures seamless ECU integration without triggering check engine lights. Users monitor and control systems via the eFlexApp mobile application, while eFlexPro users access advanced tuning through eFlexTuner Windows software. The ecosystem extends to standalone monitoring with eFlexGauge Core ($199) and includes comprehensive accessories such as Continental ethanol sensors, vehicle-specific wiring harnesses, OBD readers, and mounting hardware. All kits are designed and manufactured in Finland with a 5-year warranty (2 years standard, extendable with registration).

Differentiator

Problem solved

Functional benefit

Brands

• eFlexPlus: E85 flex fuel conversion kit for everyday drivers, automatic engine tuning for E85, gasoline, or any blend
• eFlexPro
• eFlexMoto
• eFlexGauge Core
• eFlexApp
• eFlexTuner

Products and services

• eFlexPlus E85 flex fuel conversion kit for everyday drivers that automatically adjusts engine tuning for E85, gasoline, or any blend without touching the factory ECU. Starting at $799.
• eFlexPro 2 Advanced E85 flex fuel conversion kit for tuners and professionals, with all eFlexPlus features plus improved fuel control, upgraded hardware, two 0-5V analog inputs for external sensors, Virtual Load Sensor tuning, and detailed ethanol AFR tuning via eFlexTuner Windows software. Priced at $999.
• eFlexMoto E85 flex fuel conversion kit tailored for motorcycles, ATVs, and UTVs with powersports-specific wiring harnesses and form factor. Starting at $799.
• eFlexGauge Core Standalone E85 ethanol monitoring gauge that displays real-time fuel blend data to a smartphone and ECU. Not a conversion kit, requires an existing ethanol sensor. Starting at $199.
• eFlexApp Mobile application for iOS and Android that connects via Bluetooth to eFlexFuel control units, enabling real-time monitoring of ethanol content, engine RPM, duty cycle, fuel temperature, and driving mode selection (Economy, Sport, Dynamic).
• eFlexTuner Windows-based tuning software for eFlexPro models providing 3D fuel map visualization, data logging, log file analysis, cold start adjustment, and creation of custom E85 tunes based on vehicle modifications.
• Continental Ethanol Sensor Genuine OE Continental Flex Fuel Sensor that calculates the ethanol percentage in fuel and outputs a signal to the ECU. GT150 connector compatible with GM, ACDelco, AEM, and Haltech systems. Priced at $99.
• Y-Splitter Cable for Ethanol Sensor Optional accessory that allows two devices to share the ethanol content signal from a single Continental sensor, enabling eFlexGauge to be used with an existing sensor via GT150 connector. Priced at $29.
• OBDLink LX OBD Reader Diagnostic scan tool and real-time monitor for eFlexFuel DI products supporting standard OBD-II protocols with Android compatibility. Priced at $129.
• OBDLink MX+ OBD Reader Advanced diagnostic scan tool with real-time monitoring for eFlexFuel DI products supporting GM SW-CAN and Ford MS-CAN networks in addition to standard OBD-II protocols. Android and iOS support. Priced at $189.
• eFlexPlus Upgrade Upgrade package that allows eFlexEco and other eFlexFuel products to be upgraded to eFlexPlus by replacing the control unit only. Does not include ethanol sensor, wiring harness, or accessories. Priced at $449.
• eFlexMoto Mount Stainless steel mount for securing the moto control unit to a motorcycle. Priced at $19.

Quantifiable outcome

• Up to 20% increase in horsepower and torque on E85
• +4 more outcomes

Named customers9 records

Segments5 records

Ideal customer profiles2 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration5 records

Feature6 records

Partnerships

One partnership is on record.

• Kyle Mohan RacingcoreStrategic or Co-development Partner · 1 January 2023Motorsports partnership with Kyle Mohan Racing for the 2023 Formula Drift season. eFlexFuel provides E85 conversion technology for competitive drifting applications.

Scale indicators5 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Fuel-It!: Offers Bluetooth flex-fuel kits and ethanol content analyzers for performance vehicles, overlapping directly with eFlexFuel's app-connected E85 conversion and monitoring products.
• AEM Performance Electronics: Makes flex-fuel sensors, controllers and gauges for tuning applications, overlapping with eFlexFuel's ethanol sensing and eFlexGauge monitoring products.
• COBB Tuning: Provides performance ECU tuning devices and flex-fuel solutions for enthusiast vehicles, targeting the same performance-car buyer with power-gain products.
• Ecotrons: Manufactures E85/flex-fuel conversion kits and EFI systems for cars and small engines, competing in the same aftermarket ethanol-conversion category.
• HP Tuners: Vehicle calibration/tuning software and hardware used by the same tuner community eFlexFuel's eFlexTuner and eFlexPro target for custom fuel maps.
• Haltech: Aftermarket engine management and flex-fuel-capable ECUs for tuners; overlaps with eFlexFuel's tuner-focused eFlexPro segment and ethanol-sensing hardware.
• Advanced Fuel Dynamics: Sells plug-and-play flex-fuel (E85) processor kits for late-model performance cars, directly competing with eFlexFuel's non-invasive conversion approach and enthusiast customer base.
• FuelTech: Engine management and flex-fuel electronics maker serving performance and motorsport builders, comparable to eFlexFuel's electronic control and tuning products.

Broad incumbents

• Holley: Large aftermarket fuel-system and EFI supplier whose broad portfolio includes flex-fuel-capable products, overlapping with eFlexFuel but across a much wider range.

Emerging players

• ECUMaster: Offers affordable standalone ECUs and flex-fuel-capable engine control for tuners, a niche competitor intersecting eFlexFuel's advanced tuning segment.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Instagraminstagram.com/eflexfuel
• Xx.com/eflexfuel
• Facebookfacebook.com/eFlexFuel
• LinkedInlinkedin.com/company/eflexfuel

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about eFlexFuel