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eFlexFuel E85 Flex Fuel Kits PRO Lexus IS300 01-05

Original price $999.00 - Original price $999.00
Original price
$999.00
$999.00 - $999.00
Current price $999.00

The eFlexPro 2 Flex Fuel Kit is designed for enthusiasts who want the performance benefits of E85 along with advanced fuel control and tuning capabilities. Simply install the eFlexPro 2 and you're ready to start pumping E85 into your tank to make more horsepower and torque.

You’ll see significant power gains running the default driving modes right out of the box, but the real advantage of the eFlexPro system is the ability to safely fine-tune fueling yourself to optimize ethanol performance for your specific vehicle using the eFlexTuner Windows software.

Like the eFlexPlus system, the eFlexPro automatically adjusts fueling based on ethanol content. However, the Pro version adds expanded hardware, sensor inputs, and tuning tools designed specifically for modified and high-performance vehicles.

True Flex Fuel Capability: Run E85, gasoline, or any blend automatically without switching maps or adjusting settings.

Improved Fuel Control Capabilities: Enhanced control algorithms allow more precise fueling adjustments for modified engines and high-power setups.

Upgraded Control Unit Hardware: The eFlexPro system features upgraded hardware designed for advanced tuning and expanded sensor integration.

Wideband AFR Integration: Connect your aftermarket wideband directly to the harness to datalog and build ethanol-specific fueling maps.

Two Analog Sensor Inputs: The upgraded wiring harness includes two optional 0–5V analog inputs for integrating additional sensors.

Patent-Pending Virtual Load Sensor: Allows advanced tuning without tapping into an external load sensor.

Smartphone Monitoring: Use the eFlexApp to track ethanol content, injector duty cycle, RPM, and other vehicle data.

Plug-and-Play ECU Integration: Installs under the hood without modifying your factory ECU, OBD system, or triggering a check engine light.

Advanced DIY Tuning: Safely optimize ethanol fueling and performance using the included eFlexTuner Windows software.

eFlexApp Features

Monitor and control your flex fuel system directly from your smartphone.

• Ethanol content monitoring
• Vehicle speed monitoring
• Engine RPM display
• Injector duty cycle monitoring
• Fuel temperature monitoring
• Ambient engine temperature monitoring
• Injector activity monitoring
• Device status monitoring
• Eco, Dynamic, and Sport driving modes
• Cold enrichment customization

eFlexTuner Advanced Features

The eFlexPro system supports advanced tuning through eFlexTuner software, allowing you to optimize ethanol fueling for your specific engine setup.

• RPM-based 2D fuel mapping
• Detailed Ethanol AFR tuning
• Data logging and log analysis
• Fault code diagnostics
• Sensor linkage for external sensors
• Virtual load sensor tuning
• Multiple RPM enrichment maps
• Custom cold start adjustment

What’s Included:

• eFlexPro 2 control unit
• Ethanol content sensor
• Upgraded wiring harness with analog inputs
• Fuel line components
• Installation hardware
• Smartphone app connectivity
• eFlexTuner software compatibility

When to Choose eFlexPro

The eFlexPro system is recommended if your vehicle has:

• Larger aftermarket injectors
• Turbo or supercharger upgrades
• Engine modifications (cams, built engines, etc.)
• Standalone ECU or custom tuning setup
• Aftermarket wideband AFR sensors

About Us

We are passionate Lexus and Toyota enthusiasts dedicated to providing the highest quality aftermarket parts to enhance your ride. Our goal is to help you find the perfect performance upgrade, whether you're building your dream car or just adding that next improvement. We take pride in offering products that we trust for our own vehicles.

Shipping

Shipping times vary based on item availability and specific lead times. You can expect an email with an estimated shipping date within 1-3 days of placing your order. Many in-stock parts ship within 2-5 business days, while certain built-to-order items may take up to 7-10 business days. For back-ordered items, availability may vary, but we will email you with any ETA changes.

Once your items are ready to ship, we will send tracking information via email so you can easily follow your package from our warehouse to your door. Please note, some parts may be shipped separately and could arrive at different times. Shipping costs apply to the lower 48 states, unless stated otherwise, and international orders may be subject to additional customs or duties fees.

What to Expect Upon Delivery

Upon receiving your order, please inspect the items immediately for any damage or missing parts. Verify all items against the packing slip or instructions before starting installation. We cannot be held responsible for costs incurred from delays due to missing items.

If any items are damaged or missing, please get in touch with us within 14 days of receipt so we can assist with a replacement. Claims made after this period will not be honored.

Cancellation Policy

If you need to cancel or modify your order, please contact us as soon as possible. We strive to ship your order quickly, and once processing begins, cancellations may be subject to a restocking fee. Orders canceled within 24 hours of purchase may not incur a fee, but after that time, restocking fees (typically 20%) will apply depending on the items and the stage of fulfillment.

Return Policy

Customer satisfaction is our priority, and we are happy to assist with returns. However, due to the complexity of sourcing and delivering our products, returns are subject to a restocking fee (usually 20%) based on the item and manufacturer.

Before returning any items, please get in touch with us to receive a return authorization. All return requests must be made within 30 days of receiving your merchandise. Once approved, items must be returned within 14 days in their original condition. Improper packaging of returned items may result in customer responsibility for damages.

Customers are responsible for return shipping costs, unless the item is defective or we shipped the wrong item. A trackable shipping method is strongly recommended.

Warranty

We honor all manufacturer warranties and are here to support you in getting the quality products you deserve. However, please note that warranty claims are available to the original purchaser only. In certain situations, manufacturers may handle warranty claims directly, and we are unable to cover costs not specified in the manufacturer's warranty (e.g., shipping, labor). If you have any questions, feel free to reach out to us.

Emissions Notes

All parts and services offered by LunaticsCo are for competition vehicles only. Use on state and federal highways may be a violation of the EPA Clean Air Act. The Clean Air Act can be found at http://www.epa.gov/air/caa/. This document details what are considered violations of the CAA and the corresponding penalties for failure to comply. It should be read in full before purchasing or installing this competition-use-only product. Ensuring that all emissions, noise/sound, and speed/use-related laws are followed is the responsibility of the buyer(s). Installation and use of this product indicate that this disclaimer has been read, acknowledged, and fully understood by both the buyer(s) and installer(s). The buyer(s) assume all associated risks of purchase.

Federal and several state laws prohibit the removal, modification, or rendering inoperative of any part that affects emissions or safety on motor vehicles used on public streets or highways. LunaticsCo assumes no liability for any violations arising out of any federal, state, or provincial emissions or safety requirements on motor vehicles resulting from the customer’s modifications and/or use of LunaticsCo products. It is the responsibility of the customer to determine if their modified vehicle complies with applicable laws.