"Price point for the power. And the speed of delivery, wish i had ordered all my parts through PRL! Will be ordering the DFI kit through them"
Patent Number D1099164
Overview
Important Notes:
- WiFi module wirelessly analyzes ethanol content via smart device
- Optional 0.5V - 4.5V configurable output for use with tuning device/datalogger
-
FK8 Civic Type-R ONLY compatible with Hondata
Technical Notes:
The PRL Motorsports Plug ‘n Play WiFi Flex-Fuel / Ethanol Content Analyzer Kit allows customers to wirelessly monitor ethanol content via any smart device or enable flex fuel via an optional 0.5-4.5V configurable output with a tuning device. Our innovative Patent Pending design utilizes the factory fuel line, which eliminates the chance for alternative fuel line deterioration and improves aesthetics. This kit utilizes factory plugs/outputs under the hood for power and communication to the ECU, meaning no need for additional wiring, cutting, splicing or running wires to the fuse box or through the firewall into the cabin! All hardware and bracketry is include for quick and easy installation. Kits can be installed and uninstalled within minutes. Please note that our kit does NOT utilize an ethanol content gauge, as we feel that this is unnecessary. Hondata and KTuner V1.2 both offer Bluetooth capabilities, while the KTuner V2 LCD screen can be used to display ethanol content if desired. All components are ethanol compliant!
Did you know that the factory fuel line assembly is actually Teflon and extremely resistant to ethanol-base fuels?

The factory fuel line is actually constructed with an EPDM (fuel and oil resistant synthetic rubber) outer hose and inner ETFE (another Teflon coating that is similar to PTFE) liner, which offers great resistance to a variety of fuels, including ethanol-based fuels. Because of this, there is no reason to "upgrade" or replace the factory fuel line assembly when used with this Ethanol Content Analyzer / Flex Fuel Kit unless kinked or damaged (please note the "Do Not Kink" Warning located on the line).
Why Run Ethanol?
Due to rising gas prices and the push for alternative fuel sources, ethanol, derived primarily from corn, has become a common, cost-effective fuel choice. Ethanol has now found its way into most modern gas stations and the community now understands its list of benefits in comparison to gasoline, such as the fact ethanol burns cleaner, cooler and is more resistant to detonation. Because of these characteristics, ethanol is a cheap alternative to expensive race fuels like race gas and/or methanol, especially with high(er) compression factory turbocharged vehicles. E85 = 85% Ethanol and 15% Gasoline whereas E30 = 30% Ethanol and 70% Gasoline and so-on.
What is Flex Fuel?
In a nutshell, “flex-fuel” allows an internal combustion engine to flexibly utilize one or more different fuels (usually gasoline blended with either ethanol or methanol fuel), and both fuels are stored in the same common fuel tank. Flex-Fuel systems utilize an ethanol content analyzer to determine the amount of ethanol in a fuel system and a converter to send this reading to the vehicle’s ECU to instantaneously adjust for varying fuel mixtures.
Kit Includes:
- Billet Aluminum Flex-Fuel Converter Case w/ Sealed & Potted Board (WiFi)
- Genuine GM Continental Ethanol Content Sensor
- Billet Stock Location EFI Diverter Fittings
- Plug 'N Play Braided Wiring Harness
- Stainless Mounting Bracket
- Stainless Hardware
Pair Your Part With:
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Overall rating: 4.8333335 / 5 from 12 reviews.
AI Generated Review Summary
Summary topics
Review topics: ["quality","install"].
Review highlights
Reviews
"Good"
Flex fuel kit
"My Flex fuel kit arrived in 2 days. It took my mechanic about 20 minutes to install. He said it was very well made. Waiting on my tune, for the results, but so far so good!"
Great install
"Great and very simple install. Although the bracket does not work with the dual radium catch can set up i have on the type r.. so i have to find a way to mount the oil catch can now. Since the radium catch can also used the oem bracket but won’t work to fit with this new flex fuel kit set up"
Have the prl flex fuel
"Have the prl flex fuel kit along with intake,charge pipes and intercooler haven’t had one issue yet great product and quality for sure"
Easiest install ever on the fk8 for so much gains
"First off I’m so glad I waited for this version because it re-uses the stock fuel lines so its less work and less mess from leaking gasoline. The quality and aesthetics of this unit is phenomenal. Looks so low key stealthy under the engine bay which is perfect. The WiFi connector is freakin awesome! The fact l u can set it so the ethanol content reads on the wifi network is genius! I have this paired with the prl hvi intake, prl 5inch hvi dp, prl front pipe, stock exhaust, and phearable stage 3 tune. God it’s so fast now. I’ve been Keeping it at E20 on this tune and after reviewing my datalog I have found no issues at all. Keep up the innovation PRL !!!"
Shipping and handling was great.
"Shipping and handling was great. Delivery came in a timely matter. Packaging is second to none! Being that this wifi version a newer product, I wish the it came with an installation guide. The recommended video on the internet was installed on a different car, so it took a bit to figure out how to properly install the fuel hose bracket onto my specific vehicle. I'm a mechanic by trade, not sure if someone with less knowledge or experience can figure that out as efficiently. Also, there were no instructions available to flash the flex fuel tune for hondata or Ktuner. I had to contact my tuner for guidance on this section of the install."
Prl rocks
"Great products, great people, great support."
All I can say is
"All I can say is that I am glad I purchased this kit and wish I would have done it sooner. Nothing but good things to say."
Good
"The manual is excellent. Painless install."
Q&A
- Will this fit the 2021 acura tlx 2.0t
- Greetings Mr. Sanchez. Unfortunately neither Flex Fuel Kit will work currently, due to there not being a MAP to select with your tuning device.
- I have the flex kit for my 2020 civic si 1.5t but will that direct fit over to a 19 type R or will I have to get a new one?
- Leon, Sadly, the flex fuel kit for the 1.5T Civic will not work with the Type R.