Cobb NexGen Stage 2 + Flex Fuel Power Package - Blue - 2015-2018 Subaru STI

Flex Fuel Changes the Equation

The Cobb Stage 2 CAN Flex Fuel Power Package for the Subaru is for builds that are ready to run E85 or a blended flex fuel mixture. The CAN Flex Fuel kit works with the Accessport V3 to automatically adjust tune parameters based on the ethanol content in the tank — you can run anything from 91 octane to straight E85 and the system adapts in real time. Ethanol's higher octane equivalent and better charge cooling properties mean more timing, more boost, and more power than pump gas alone allows. Color: Blue.

The Accessport V3: The Tune First, Hardware Second

Every Cobb Power Package centers on the Accessport V3 — the most widely used Subaru ECU tuning tool on the market. The included OTS (Off-The-Shelf) map for the Subaru is calibrated specifically for the components in this package, meaning the Accessport isn't just monitoring your car — it's actively optimizing fuel delivery, ignition timing, and boost targets to match the hardware. The Accessport V3 mounts to the windshield or dash and displays live data as you drive, and it can be retransferred to another vehicle or returned to fully stock at any time.

Everything Validated Before It Leaves Austin

Cobb's approach to Power Packages is to validate every component combination on their own test vehicles before releasing an OTS map. That means when you buy a Cobb Stage 2 package, the tune isn't theoretical — it's been run on hardware identical to what's in the box. Installation is straightforward: the intake and hardware bolt into factory locations, the Accessport plugs into the OBD-II port, and the package map is loaded from the device menu. No wideband, no dyno visit, no tuner appointment required to get on the road with Stage 2 performance.

Key Features

• Cobb Stage 2 Power Package — complete validated performance bundle
• Cobb Accessport V3 included — OTS tune calibrated for this exact package
• Flex Fuel CAN kit — real-time ethanol content detection, auto tune adjustment
• All components designed and validated together by Cobb engineering
• OTS tune included — no dyno appointment required to get on the road
• Accessport V3 is retransferrable and fully reversible to stock
• Platform: Subaru

Fitment Notes

• Subaru — all compatible trims
• Confirm MT vs CVT compatibility by SKU before ordering
• Accessport V3 is vehicle-specific — verify fitment at cobbtuning.com

Straight From Subispeed

Cobb Power Packages are the most straightforward way to get meaningful performance gains on a Subaru without making individual sourcing decisions for every component. The Accessport is the centerpiece — everything else in the package was chosen specifically to work with the map that comes loaded on it. If you're starting your build on a Subaru and you want gains you can actually feel on the first drive, the Cobb Stage 2 package is where to begin. The all-in-one nature of the bundle means no compatibility questions and no guessing — just a validated system from a manufacturer that does this for a living.

What's Included

• Cobb Accessport V3
• Cobb SF Intake
• Flex Fuel CAN kit

About Cobb Tuning

Cobb Tuning has been developing performance parts and tuning solutions for Subaru vehicles since 1999. Based in Austin, Texas, Cobb built their reputation on the Accessport — the most widely used Subaru ECU tuning device on the market — and expanded that into a full ecosystem of intake, exhaust, drivetrain, and engine bay accessories engineered specifically for the platforms they support. Every Cobb product is developed in-house and validated on their own test vehicles before it reaches customers. Subispeed carries the full Cobb catalog because their engineering standards and platform-specific development process consistently produce parts that work exactly as advertised.