COBB Stage 1 to NexGen Stage 2+ Flex Fuel Power Package Upgrade Blue (SUB003NG2S1FF-S1-UP-BL) | Subaru STI 2008-2014

The COBB Stage 1 to NexGen Stage 2+ Flex Fuel Power Package Upgrade Blue (SUB003NG2S1FF-S1-UP-BL) provides all necessary hardware to advance your 2008–2014 Subaru STI from a basic Stage 1 configuration into a full NexGen Stage 2+ Flex Fuel setup. This upgrade enables ethanol-blended fuel capability while improving airflow efficiency and preparing the platform for COBB’s advanced NexGen Flex Fuel calibration logic. The Blue finish adds a bold, performance-oriented visual upgrade under the hood.

KEY FEATURES

• Converts a Stage 1 Subaru STI into a complete NexGen Stage 2+ Flex Fuel configuration
• Supports E85 and blended ethanol fuels for increased power potential and improved knock resistance
• Enhances airflow and reduces restriction for optimized turbocharger response
• Fully compatible with COBB NexGen OTS Flex Fuel maps and custom tuning solutions
• Blue-finished components deliver a vibrant, motorsport-inspired engine bay aesthetic
• Creates a reliable foundation for higher-boost and advanced performance builds
• Direct-fit installation engineered to match OEM mounting points

TECHNICAL SPECIFICATIONS

• Platform Compatibility: Subaru STI 2008–2014
• Upgrade Type: Stage 1 to NexGen Stage 2+ Flex Fuel hardware transition
• Fuel Support: E85, pump gas, and blended ethanol mixtures
• Tuning Requirement: COBB NexGen OTS Flex Fuel maps or custom NexGen calibration
• System Benefits: Increased tuning headroom, improved combustion stability, and smoother torque delivery
• Included Components: Hardware required to complete the NexGen Stage 2+ Flex Fuel upgrade path
• Application: Performance-oriented street and track builds seeking ethanol capability

VEHICLE FITMENT

• Subaru STI 2008–2014

COBB delivers proven, data-driven performance solutions engineered to optimize your Subaru with unmatched precision and reliability.