COBB Stage 1+ to NexGen Stage 2+ CAN Flex Fuel Power Package Silver 6-Speed (SUB004NG2W-SL2FF-S1P-UP) | Subaru WRX 2018-2021
Description
Description
The COBB Stage 1+ to NexGen Stage 2+ CAN Flex Fuel Power Package Silver 6-Speed (SUB004NG2W-SL2FF-S1P-UP) provides 2018–2021 Subaru WRX 6-speed owners with the hardware required to advance from a Stage 1+ configuration into a NexGen Stage 2+ CAN Flex Fuel setup. By improving airflow efficiency and enabling ethanol-blended fuel capability, this upgrade allows COBB’s NexGen tuning to deliver sharper turbo response, smoother power delivery, and broader calibration flexibility.
KEY FEATURES
- Upgrades a Stage 1+ Subaru WRX to full NexGen Stage 2+ CAN Flex Fuel configuration
- Optimized for 6-speed manual WRX models seeking improved responsiveness and drivability
- Supports E85 and blended ethanol fuels through COBB’s CAN-integrated Flex Fuel system
- Enhanced airflow reduces restriction for improved turbocharger efficiency
- Silver-finished hardware provides a clean and refined engine bay presentation
- Delivers smoother torque delivery, increased knock resistance, and expanded tuning options
- Compatible with COBB NexGen Stage 2+ CAN Flex Fuel OTS maps and custom tuning
- Designed for reliable, OEM-like fitment with long-term durability
TECHNICAL SPECIFICATIONS
- Platform Compatibility: Subaru WRX 2018–2021
- Transmission Compatibility: 6-speed manual models
- Upgrade Type: Stage 1+ to NexGen Stage 2+ CAN Flex Fuel conversion
- Fuel Support: Pump gas, E85, and ethanol-blended mixtures
- Tuning Requirement: COBB NexGen Stage 2+ CAN Flex Fuel OTS map or custom CAN-based tuning
- Performance Benefits: Improved airflow, stronger knock resistance, and smoother power delivery
- Included Components: CAN Flex Fuel hardware, airflow upgrades, and NexGen Stage 2+ supporting components
- Application: Ideal for WRX owners seeking ethanol-enabled performance gains with refined drivability
VEHICLE FITMENT
- Subaru WRX 2018–2021
COBB delivers proven, data-driven performance solutions engineered to optimize your Subaru with unmatched precision and reliability.






