SKU: 27680756756

08+ STI FLEX FUEL KIT

Sale price$337.50 Regular price$375.00
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

08+ STI FLEX FUEL KITDelicious Tuning Mk2 Flex Fuel kit is a complete seamless solution for your EcuTek, that any EcuTek Master Tuner can tune. It features all the same functionality as the discontinued Cobb's standard flex fuel kit, but with a few extra features and functionality. The Mk2 can use O2 sensor inputs (built to order), to get the ethanol content or fuel pressure signals to the ECU. Please select which input you desire from the drop down menu. With the

Delicious Tuning -  Mk2 Flex Fuel kit is a complete seamless solution for your EcuTek, that any EcuTek Master Tuner can tune. It features all the same functionality as the discontinued Cobb's standard flex fuel kit, but with a few extra features and functionality.

The Mk2 can use O2 sensor inputs (built to order), to get the ethanol content or fuel pressure signals to the ECU. Please select which input you desire from the drop down menu.

With the Bluetooth feature, you can now monitor your fuel pressure, fuel temp for starting, as well as ethanol content. These parameters can also be displayed via the Accessport display.

Flex Fuel Diagnostic System (FFDS) that can detect electrical opens, electrical shorts, sensor failures or even too much water within the fuel.   The fault detection can diagnose an open in the electrical system, short, bad ethanol sensor, too much water in the fuel system, and fuel pressure loss. 

Fuel Presure System (FPS) will display and dynamically control injector opening time to finely adjust fueling and open in the event of fuel pressure loss.

The included Stumble Fix Kit eliminates the infamous 2800 to 3200 RPM stumble that occurs on 08-16 STi's by eliminating fuel pressure regulator buffeting, through using a more stable vacuum source and specific tuning strategies.  

Delicious Tuning FlexFuel BlueTooth Kit includes:

- Delicious Tuning FlexFuel Ethanol Content Analyzer with Integrated BlueTooth
- Delicious Tuning Smart Phone Applications (Android or iPhone Compatible)
- Delicious Tuning Hand Assembled and Pressure Tested Fuel Lines
- Delicious Tuning Mounting Bracket and Hardware
- Delicious Tuning Plug and Play Harness
- Delicious Tuning Stumble Fix Kit
- Continental Flex Fuel Sensor

Optional Add-On (Select from drop-down below)
- Delicious Tuning Fuel Pressure Sensor Kit

Compatible with Cobb Pro Tuning Software with Custom Features for Flex Fuel.

Delicious Tuning custom dyno tuning a Cobb Flex Fuel Kit on a 2016 Subaru STI.
Watch the AccessPort display changes ethanol content in the lower right tile as ethanol is mixed into the fuel system. 

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: 27680756756

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 2434 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
B
Verified Purchase
Brian & Renee Sitko
Carnegie, US
★★★★★ 5
Love the color
Color: Red, Color: Red
Super vibrant color with minimal shedding .. it fits my steering wheel and easy to install and worth the money..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
T
Verified Purchase
T
Dallas, US
★★★★★ 3
It’s ok
Color: Lavender Purple
Its ok. Not as fluffy as i think it would be. I have had it over a month or so and its starting to get even more less fluffy. The color wAs more like a faded purple
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
C
Verified Purchase
Chino
Dallas, US
★★★★★ 5
Very fluffy
Color: Wolf Tipped
Fast shipping and looks good
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
T
Verified Purchase
Terran
Lowell, US
★★★★★ 5
ITS SOOOO FLUFFY!!
Color: Orange
Ooouuu she’s so fluffy!!!!!! Omg, I’m in love. The color looks exactly as pictured. The gear shift cover was way too small for my RAV4 but it’s okay, it kind of interfered with the button to move the gear. Also, if you need to see the info on the dash, be aware that the steering wheel cover blocks it for the most part. I’m not bothered by it but it’s something to make note of for those who might be.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
M
Verified Purchase
Michele Fay McKenna
Los Angeles, US
★★★★★ 5
Warm and soft!!
Color: Orange, Color: Orange
So funky and cute! Matches my inferno orange car! I really only wanted the steering wheel cover & have no need for the other covers because they don’t fit on my shifter, or my parking break. Besides, it gets kind of dirty on the console. Keeping gloves in the car so it doesn’t end up dirty from my hands this winter:) It does make it a bit hard to see the ignition and some of the gauges as it is so fluffy, but it’s so funny, I don’t care! Lol
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 6, 2025

recommand products