2017-2021 Honda Civic Type-R FK8 Flex Fuel Ethanol Sensor Kit

2017-2021 Honda Civic Type-R FK8 Flex Fuel Ethanol Sensor Kit

PRL Motorsports SKU: PRL-HCR-FF

5.0 / 5.0 based on 4 reviews


Shipping calculated at checkout

Expected Aug 12

Now with WiFi Module!

2017-2021 Honda Civic Type-R FK8

Fits all variant models including RHD, International Models, Etc.


Important Notes: 

Upgraded Replacement Fuel Hoses:

Technical Notes:

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.

Our Plug ‘n Play Flex-Fuel 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 through the firewall into the cabin! This kit supplies everything needed for a quick and easy installation. 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!

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.


Kit Includes:

  • Billet Aluminum Flex-Fuel Converter Case w/ Sealed & Potted Board (WiFi)
  • Genuine GM Continental Ethanol Content Sensor
  • Plug 'N Play Braided Wiring Harness
  • Stainless Mounting Bracket
  • Gates Barricade High-Pressure Fuel Injection Hose
  • EFI Quick Connect Fitting
  • Stainless Hardware

Customer Reviews

Based on 4 reviews
Tyesh Goldizen
Flex Fuel!

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.

Jeffrey Duma

The manual is excellent. Painless install.

Great mods

Just installed this, and the install was a little challenging. The charge pipes were a little tricky, because you have to get them in a certain position so when you put the Inter cooler it’ll just bolt on straight. Not saying the item was bad at all, it is just the lack of room made it quite hard to get a smooth install. Like always, couldn’t be happier with this purchase. Thanks PRL!!

Tegarth Bishop
Love it

Best value and quality, my 2nd kit for my two type r house. Thank you PRL love this kit and all your products.