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2009-2015 Nissan 370Z E85 Flex Fuel Conversion Kits

Boost Your V6 Engine’s HP by Up To 12% with eFlexFuel

The 2010-2020 370Z replaced the 350Z in the Nissan lineup. Though they were similar in overall styling, some major upgrades really set these cars apart. For example, the 370Z was a little lighter than the 350Z with a more powerful engine. By putting this car on a diet and increasing horsepower from 306 to 350, Nissan produced a factory machine that, yet again, wowed Z Car fans and non-Z Car fans alike. Sure, some of the lines changed to give it a little sportier of a feel to go with the power upgrades, but they stayed true to the Z Car roots. Even with 3.7L V6 that produces 350 HP, there’s always room for improvement. This is where the eFlexFuel E85 conversion kits come in. With flex fuel conversion kits you can increase HP by up to 12% and manage your driving profiles from your phone.

No tuning required!

$699 List price $874

Starting at $61.50 / month with Affirm logo

Truspilot consumer rating 4.7 SKU: U-EF-PLUS
  • Free shipping
  • Delivery time 2-5 days
  • 5 year warranty with registration


Convert your 370Z to E85 flex fuel with our eFlexPlus and get up to 10% more horsepower or 12% with our eFlexPro. Both conversion kits are easy to install and can be active within a couple of hours. As an added incentive, the eFlexPro comes with eFlexTuner software that allows you to fully tune your 370Z on a mixture of E50 or higher. Order your plug and play eFlexFuel E85 conversion kits today and experience the power boost and benefits of ethanol.

Technical specs

Make & ModelNissan 370Z
Engine3.7l / VQ37VHR
Power350 hp


DIY level

Plug&Play installation with some modifications - An experienced mechanic will install in 2-3h. For first time DIY installation, expect to double the time needed.

Fully Automatic Flex FuelAlways Optimized Fully Automatic Flex Fuel
Cooler & Cleaner EngineCooler & Cleaner Engine
No Tuning NeededComplete System, No Tuning Needed
Increase PerformanceUp to 20% Increase in Performance
Flex Fuel System VerifiedYour Fuel System Verified
Dynamically adjust engine tune to match fuel
Available performance and eco tunes
Select performance or eco tunes via eFlexApp
Create and save custom dyno tunes
Pro grade eFlexTuner tuning software

+ What's included

+ eFlexApp

+ eFlexTuner

+ Installation

+ Returns

+ Warranty

What's included in the eFlexPro E85 flex fuel conversion kit / Installation

Note: If your car is modified you can use E85 with eFlexFuel. If this is the case, please list all the main engine modifications on the checkout page. Our technical team will ensure that your setup is fit for E85.

* Power and torque increase depends on your engine technology and/or your custom built of the engine.

Prop 65 Warning
Warning signNot legal for sale or use on pollution-controlled vehicles

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