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Our Stage 2+ NexGen Flex Fuel Power Package delivers a complete performance solution for your WRX, combining intake, boost control, and fuel system enhancements to maximize power safely. With the integrated Ethanol Content and Fuel Pressure Sensors, your WRX can automatically adjust fueling and timing to match the ethanol content in your fuel. Simply fill up with pump E85 to unlock additional power—no map switching required. When paired with COBB’s NexGen Flex Fuel Off The Shelf Maps, you’ll experience smooth drivability, consistent performance, and true power-on-demand flexibility.
The COBB NexGen Stage 2+ Flex Fuel Power Package for the 2011–2014 Subaru WRX combines proven airflow and fueling upgrades with the flexibility of ethanol-based performance.