COBB NexGen Stage 2+ Flex Fuel Power Package Blue (SUB004NG2S1FF-BL) | Subaru STI 2015-2018

The COBB NexGen Stage 2+ Flex Fuel Power Package Blue (SUB004NG2S1FF-BL) equips 2015–2018 Subaru STI models with the advanced hardware needed to achieve NexGen Stage 2+ performance while enabling ethanol-blended fuel operation. By improving airflow and activating COBB’s NexGen Flex Fuel logic, this package delivers increased tuning flexibility, stronger knock resistance, and sharper throttle and boost response. The Blue finish adds a bold, motorsport-inspired visual upgrade to the engine bay.

KEY FEATURES

• Complete NexGen Stage 2+ Flex Fuel hardware solution for 2015–2018 Subaru STI models
• Supports E85 and blended ethanol fuels through COBB’s NexGen Flex Fuel tuning system
• Improves airflow and reduces restriction for enhanced turbocharger performance
• Blue component finish provides a vibrant, performance-focused aesthetic
• Delivers smoother power delivery, improved combustion stability, and increased tuning range
• Compatible with COBB NexGen Stage 2+ Flex Fuel OTS maps and custom NexGen calibrations
• Engineered for precise, direct-fit installation

TECHNICAL SPECIFICATIONS

• Platform Compatibility: Subaru STI 2015–2018
• Package Level: NexGen Stage 2+ with Flex Fuel capability
• Fuel Support: Pump gas, E85, and blended ethanol mixtures
• Tuning Requirement: COBB NexGen Stage 2+ Flex Fuel OTS map or custom NexGen tuning
• Performance Benefits: Expanded tuning adaptability, reduced knock tendency, enhanced turbo response
• Included Components: Core hardware needed for NexGen Stage 2+ Flex Fuel operation
• Application: Ideal for street or track builds seeking ethanol-ready performance gains

VEHICLE FITMENT

• Subaru STI 2015–2018

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