GT1R GEN 2 FLEX FUEL KIT
SKU: 8258671008

GT1R GEN 2 FLEX FUEL KIT

$251.08 $278.98
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Ships within 48 hours · Estimated delivery Jul 4 - Jul 9

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Description

GT1R GEN 2 FLEX FUEL KITThe second generation GT1R Flex Fuel kit is improved in both being completely plug and play to all year model R35 GTRs, as well as the sensor being relocated to the pressure side of the system. The sensor on the pressure side of the system gives more consistent readings in the event that return fuel flow is minimal (if youre nearly maxing out the fuel pumps). Weve also updated the wiring and now offer a plug and play wiring harness. Like the rest of

The second generation GT1R Flex Fuel kit is improved in both being completely plug and play to all year model R35 GTRs, as well as the sensor being relocated to the pressure side of the system.

The sensor on the pressure side of the system gives more consistent readings in the event that return fuel flow is minimal (if you’re nearly maxing out the fuel pumps).

We’ve also updated the wiring and now offer a plug and play wiring harness.  Like the rest of our wire harnesses, we use Race Spec, the best in the business.   Our harness is assembled using Mil Spec tefzel wire, Raychem DR-25 heat shrink, and new connectors for a durable and clean PNP installation.

The flex fuel converter box converts the digital signal from the ethanol sensor to a 0-5v signal that the stock ecu requires.   With this converter, the output is .5v for 0% ethanol and 4.5v for 100% ethanol.

There is no display used with this kit, as both Cobb and EcuTek allow the user to view ethanol content in their own ways.

The complete kit includes all plumbing, with high quality Redhorse Performance ethanol compatible hose and crimp hose ends, the ethanol content sensor and mount, and the PNP wiring harness.

We offer kits to suit the stock fuel rail, or aftermarket rails.  The stock fuel rail kit includes a rail adaptor to convert the rail inlet to AN threads.  If you’re using aftermarket rails, you will need to specify what size the rail is (6AN ORB or 8AN ORB).

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 8258671008

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4.1 ★★★★★
Based on 234 reviews
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Albert
Alexandria, US
★★★★★ 5
Super nice and smooth, so much power! Car feels nimbler. Worth the price
Size: 5 Liter, Style: 1 Pack, Configuration: 5W-50
I normally don't buy such expensive engine oils (normally buy cheap diesel truck oils add in MoS2). However, this one was well worth the purchase. Engine feels substantially smoother and quieter. After running for a while, the car feels a lot nimbler. More power, and as if it simply wants to keep moving rather than whining. It glides like a magic carpet
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2026
F
Verified Purchase
Frankie 4 Fingers
Lake Worth, US
★★★★★ 5
Give the green light to the green oil.
Size: 5 Liter, Style: 1 Pack, Configuration: 0W-20
Great oil. I've used Liqui-Molly in all my vehicles and it always performs. Theres very little burn off between changes and I noticed cleaner, quieter engine. I've used this in many different car brands, it never disappoints.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
R
Verified Purchase
Raul Marin
Lowell, US
★★★★★ 5
Car Runs Smooth, Less Friction, and Improved Performance at Start Up and Underload.
Size: 5 Liter, Style: 1 Pack, Configuration: 0W-20
I kept hearing things about this oil from a few friends that work on cars and from my "go-to" mechanic. I was previously using Mobile 1 0w-20 on my 2024 4Runner and my wife's 2025 Outback Onyx, and this time around I decided to try it on both cars as they needed an oil change. So far I am happy with the change for both cars. This is good oil quality, smooth engine running, and noticeable oil lubrication at cold start. I am getting better MPGs mileage on both cars. Also noticeable engine is running with smoother. I had to lower my car window to check that my 4runner was on as it was quiet. I will update my review after a second oil change with this oil on both cars.
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Reviewed in the United States on December 12, 2025
R
Verified Purchase
R Washington
New York, US
★★★★★ 5
Liquid Gold for Your Engine! 🛢️💥
Size: 1 Liter, Style: 1 Pack, Configuration: 5W-40
I didn’t think I’d get excited about motor oil, but here we are—Liqui Moly Molygen 5W-40 has officially made me feel like a car enthusiast. If you're serious about keeping your engine purring like a kitten, this stuff is like giving it a spa day with an energy drink chaser. First off, this isn’t just any old motor oil—it’s high-tech motor oil. We’re talking German engineering at its finest. The neon green color? Oh yeah, it looks as cool as it sounds, and trust me, when you see that green oil running through your engine, you know you're in for some serious performance. 🟢💯 Why do I love it? Engine protection: This oil is like a security blanket for your engine. It reduces friction like a champ, so parts glide smoothly, which means less wear and tear. Translation: your engine will thank you with better performance and a longer life. Fuel efficiency: You’re not just getting a smoother ride; you’re also saving some bucks at the pump. The way this oil cuts down on friction helps with fuel economy. It’s like the gift that keeps on giving. Cold start-ups? No problem. Whether you’re dealing with a chilly morning or scorching summer, this oil handles temperature extremes like a boss. It maintains its viscosity so your engine stays protected regardless of the weather. And did I mention the Molygen technology? It’s not just a fancy name—this oil has additives that coat your engine in a protective film, keeping it running smooth and reducing the risk of damage, even during high-stress drives. Final thought: If you're looking for an oil that’s as serious about your car’s performance as you are, the Liqui Moly Molygen 5W-40 is it. Your engine will run smoother, quieter, and stronger, and you’ll feel like you’ve just upgraded your car’s lifeblood. 🚗💨 Plus, that neon green color? Total conversation starter at the garage. 😉
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Reviewed in the United States on September 23, 2024
R
Verified Purchase
Raptor
Birmingham, US
★★★★★ 5
Near OEM quality at 1/4 cost
Near OEM performance at 25% of the cost! Bosch Quality replaced NGKs/Toyota OEMs. Great value and now the engine is running smoothly! I have seen a slight improvement in my mpg @1mpg overall in mixed driving conditions.
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Reviewed in the United States on April 22, 2026

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