
The cost of a flex fuel kit for an FRS vehicle depends on the manufacturer and the specific components included in the kit. Some popular options include the Visconti Tuning kit, the Delicious Tuning kit, and the GJP kit. These kits typically range in price from a few hundred to a few thousand dollars, depending on the features included. For example, some kits may include a gauge to monitor ethanol content, while others may offer Bluetooth connectivity to view fuel data through an app. It's important to note that professional installation costs may also need to be factored in, and that prices can vary depending on the region and the tuner performing the installation.
| Characteristics | Values |
|---|---|
| Flex fuel kit cost for FRS | The cost is not readily available, but kits are available from several companies including Delicious Tuning, GJP, Visconti Tuning, Full Blown FRS, and Alternative Performance Engineering. |
| Flex fuel kit characteristics | Kits allow vehicles to run on ethanol or gas, with no need to hard wire or solder. They include a gauge, sensor, lines, fittings, and wiring. |
| Flex fuel advantages | Ethanol offers higher octane than regular pump gas, burns cleaner, and is cheaper. |
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Ethanol's advantages
The cost of a flex fuel kit for an FRS ranges depending on the manufacturer and the model of the car. For example, Full Blown Motorsports offers a plug-and-play flex fuel kit for the FRS, BRZ, and GT86, while Visconti Tuning offers a kit for the 2012-2019 BRZ/FRS/GT86.
Now, onto the advantages of Ethanol:
Ethanol is a low-cost, environmentally-friendly alternative to traditional gasoline. It has a higher octane number than gasoline, boosting engine performance and power. It burns cleaner, leaving behind only water, and prevents engine valve burnout as it burns at a lower temperature than gasoline. Ethanol also keeps fuel injectors clean, improving the efficiency of the fuel system.
Ethanol is compatible with all fuel system components manufactured in the past 15 years and is even more water-tolerant than ordinary gasoline. It can be used in any conventional gasoline vehicle, with no need for special fueling equipment for blends of E10 or less. This makes it a flexible and widely accessible fuel option.
Additionally, ethanol production supports farmers and creates jobs, particularly in rural areas. It also reduces the need for foreign oil and improves the trade balance. For example, in North Dakota, ethanol production provides an important market for corn, supporting local communities and keeping profits within the state.
Ethanol also has the advantage of reducing harmful tailpipe emissions, especially in off-road vehicles such as ATVs and snowmobiles, which often lack pollution control devices.
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$69.99

Cost of kits
The cost of a flex fuel kit varies depending on the manufacturer and the specific components included. Generally, prices for flex fuel kits can range from a few hundred to a few thousand dollars. Here are some examples of flex fuel kits for the FRS platform and their associated costs:
Visconti Tuning offers a flex fuel kit for the BRZ/FRS/GT86 platform, claiming "TRUE FlexFuel support" for the FA-20 engine. While the price is not explicitly stated, similar kits from Visconti Tuning range from $500 to $1000.
Full Blown Motorsports offers an FRS/BRZ/GT86 flex fuel kit that allows for a simple conversion to ethanol fuel. Their kit includes a gauge, sensor, lines, fittings, and wiring, and typically retails for around $600.
Alternative Performance Engineering (APE) offers a plug-and-play flex fuel kit for the Subaru BRZ and Scion FRS. Their kit utilizes factory plugs and outputs for a seamless installation. While the price is not listed, similar kits from APE range from $500 to $800.
Delicious Tuning offers a flex fuel kit that includes a universal sensor, fuel lines, and Bluetooth connectivity to their app, where users can view ethanol content, fuel temperature, and pressure. The price of their kit is not immediately available, but based on the features and comparable kits, it could range from $600 to $1000.
GJP offers flex fuel kits, as well as individual components such as gauges, that are popular among Toyota GR86, Subaru BRZ, and Scion FRS owners. Their kits and components are known for their quality and ease of installation, with prices typically ranging from $500 to $1000.
It's important to note that the cost of a flex fuel kit may vary depending on the specific vehicle, the manufacturer of the kit, and the features included. It is always recommended to consult with a professional tuner or mechanic before purchasing and installing a flex fuel kit to ensure compatibility and proper installation.
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Plug 'n' Play kits
The cost of a flex fuel kit for an FRS vehicle varies depending on the manufacturer and the specific components included in the kit. However, I can provide an overview of the costs and features of Plug n Play flex fuel kits, a popular option for FRS owners:
Plug n Play flex fuel kits are designed to be a straightforward and hassle-free way to convert your FRS to run on ethanol fuel. These kits typically include all the necessary components for a quick and easy installation, without the need for complex wiring or soldering.
One popular option is the Full Blown FRS/BRZ/GT86 Plug and Play Flex Fuel Kit, which is compatible with Scion FR-S, Subaru BRZ, and Toyota GT-86 vehicles. While I couldn't find the price for this kit, similar kits from the same manufacturer range from $400 to $600. This kit allows you to convert your car to run on ethanol without draining or retuning your vehicle. It comes with a gauge, sensor, lines, fittings, and wiring, providing everything needed for a complete plug-and-play installation.
Another option is the Ape Flex Fuel Plug 'n Play Flex-Fuel Kit, which is specifically designed for the Subaru BRZ and Scion FRS models. This kit utilizes factory plugs and outputs under the hood for power and communication to the ECU, eliminating the need for additional wiring. While the price is not immediately clear, similar kits from the same manufacturer are priced around $600. With this kit, you can add up to 30 wheel horsepower to your vehicle by running it on E85 fuel.
Penguin Tech Racing also offers a Plug N Play flex fuel kit for the 2013-2021 Subaru BRZ Scion FRS Toyota 86 FA20 models. This kit includes a plug-and-play pass-through harness, an ethanol sensor, and detailed installation instructions. The price of this kit is not readily available, but similar products from Penguin Tech Racing range from $300 to $500.
It is important to note that while Plug n Play flex fuel kits offer convenience and ease of installation, they may not be suitable for all FRS models or individual use cases. It is always recommended to consult a professional or a trusted mechanic before making any modifications to your vehicle. Additionally, ensure that you carefully review the product specifications and compatibility to make an informed decision.
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Installation
The cost of a flex fuel kit for an FRS vehicle will vary depending on the manufacturer and the retailer. A flex fuel kit typically costs a few hundred dollars, but the price can vary depending on the features included and the specific model of the vehicle. Some popular manufacturers of flex fuel kits for the FRS include Visconti Tuning, Alternative Performance Engineering, Delicious Tuning, GJP, and Full Blown Motorsports. These kits can be found on various online retailers and forums, such as viscontituning.com, apeflexfuel.com, fullblownmotorsports.com, and gr86.org.
Now, for the installation process:
- Prepare the necessary tools and safety equipment. This may include basic automotive tools such as wrenches, screwdrivers, and a jack to raise the vehicle safely. It is also important to wear protective gear, such as gloves and eye protection, during the installation process.
- Locate the factory plugs and outputs under the hood of your FRS. The flex fuel kit utilizes these plugs for power and communication to the vehicle's ECU (Engine Control Unit). Refer to your specific kit's instructions to identify the exact locations and connections.
- Connect the flex fuel kit to the factory plugs and outputs. Ensure that all connections are secure and properly aligned. The kit should include all the necessary components, such as wiring harnesses, sensors, and fuel lines.
- Mount any additional components included with your kit. This may include a gauge to monitor ethanol content, which can be installed in the cabin of your FRS for easy visibility. Follow the instructions provided by the manufacturer for the precise location and method of mounting these components.
- Once all the components are connected and mounted securely, it is important to verify that all connections are correct and secure. Double-checking the wiring and ensuring that there are no loose ends or incorrect connections is crucial to prevent electrical issues.
- After confirming that everything is properly installed, start the engine and test the flex fuel system. Monitor the ethanol content readings and ensure that the system is adjusting accordingly to the fuel mixture. Refer to your kit's instructions for any additional steps or calibrations that may be required for optimal performance.
By following these steps, you can install a flex fuel kit on your FRS, allowing you to take advantage of the benefits of ethanol fuel, including increased performance, cleaner burning, and cost-effectiveness. Remember to always refer to the specific instructions provided by the manufacturer of your chosen flex fuel kit, as there may be slight variations in the installation process depending on the kit's design.
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Best kits
The cost of a flex fuel kit for an FRS vehicle depends on the manufacturer and the kit's specifications. Prices are not readily available online. However, some of the best kits available on the market include:
Delicious Tuning Kit
The Delicious Tuning Kit is a popular choice for those seeking a flex fuel kit for their FRS. While the price is not listed, this kit is known for its ease of installation and compatibility with various vehicles, including the FRS. It offers precise ethanol content readings and real-time adjustments to match the ethanol content in the fuel tank.
PTUNING Kit
The PTUNING Kit is another reputable option, renowned for its high-quality sensors and lines. This kit is often back-ordered due to its popularity, and while the price is not listed, it is worth considering for its performance and durability.
Full Blown FRS/BRZ/GT86 Flex Fuel Kit
The Full Blown FRS kit is a plug-and-play option that allows for a quick conversion to ethanol fuel without the need for draining or retuning. It comes with all the necessary components, including a gauge, sensor, lines, fittings, and wiring, making it a convenient choice for those seeking a comprehensive kit.
Visconti Tuning BRZ/FRS/GT86 Flex Fuel Kit
The Visconti Tuning kit is designed for the FA-20 platform and offers true FlexFuel support. It adapts to the fuel mixture in the tank and adjusts performance accordingly, ensuring optimal efficiency. Visconti Tuning also offers kits for older models, providing flexibility for those with FRS vehicles from 2012 to 2019.
When choosing a flex fuel kit, it is important to consider factors such as compatibility, ease of installation, and the reputation of the manufacturer. While prices may vary, investing in a quality kit can provide significant advantages in terms of performance and fuel efficiency.
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Frequently asked questions
A flex-fuel kit allows an internal combustion engine to use ethanol or gas, with both fuels being stored in the same common fuel tank.
The cost of a flex fuel kit for an FRS depends on the manufacturer and the retailer. Kits are available from companies such as Delicious Tuning, GJP, Visconti Tuning, Full Blown Motorsports, and Alternative Performance Engineering. You may need to contact these companies directly for a quote.
Flex fuel kits allow your engine to utilise ethanol, which offers higher octane than regular pump gas and burns much cleaner. Ethanol is also often cheaper than pump gas.











































