Ignitions and Electrical› Wiring Components

COBB Tuning

NexGen Flex Fuel Ethanol Sensor Kit

$790.00

SKU: COBB325650

In Stock
In Stock
Ships by Aug 3
Free Shipping over $100
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The COBB Tuning NexGen Flex Fuel Ethanol Sensor Kit is engineered to provide real-time ethanol content measurement for 2008-2021 Subaru STI models, including the 2018 Type RA. This allows for optimal engine tuning when running various fuel blends. When used in conjunction with a COBB Accessport, this kit enables your vehicle's ECU to adjust fuel delivery and ignition timing dynamically based on the ethanol content detected. This ensures consistent performance and safety whether you are running gasoline, E85, or any blend in between. Installation involves integrating the sensor into the fuel system and connecting it to the vehicle's ECU. Specific details on fuel line modifications and wiring will be necessary for proper integration. Important considerations include that this product is not CARB Legal and is therefore not for sale or use in California. Always verify compatibility with your specific vehicle's ECU tuning setup before installation.

MIA's Description

The COBB Tuning NexGen Flex Fuel Ethanol Sensor Kit is designed for 2008-2021 Subaru STI models, including the 2018 Type RA. This kit allows your vehicle to accurately measure the ethanol content of your fuel. It is compatible with COBB's Accessport for real-time tuning adjustments.

Note that this product is not CARB legal and cannot be sold in California.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandCOBB Tuning
Part NumberCOBB325650
CategoryIgnitions and Electrical

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy