• COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
  • COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)
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COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)

COBB NexGen Stage 2+ Flex Fuel Power Package w/ Blue Intake | Subaru STI (15-18) (SUB004NG2S1FF-BL)

SUB004NG2S1FF-BL

In stock

$4,415.00 USD
$4,415.00 USD $4,415.00 USD
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The COBB NexGen Stage 2+ Flex Fuel Power Package for the 2015–2018 Subaru WRX STI is a comprehensive performance upgrade kit designed to maximize power and efficiency. This package includes the Subaru Accessport V3 (AP3-SUB-004), SF Intake and Airbox, Silicone Turbo Inlet V2, Throttle Body Coupler, upgraded spark plugs, top feed 1050cc fuel injectors, a high flow fuel pump, fuel pressure regulator, fuel rail line kit, fuel rails, NexGen Flex Fuel Ethanol Sensor Kit, and a fuel pressure sensor kit. Engineered to optimize fuel delivery and intake airflow, this kit enhances throttle response, power output, and fuel flexibility, allowing the vehicle to run efficiently on ethanol blends. The inclusion of high-quality components ensures durability and reliable performance under demanding conditions.

This power package is specifically designed for the 2015 to 2018 Subaru WRX STI, providing a bolt-on upgrade path for enthusiasts seeking enhanced street and track performance. The kit supports flex fuel applications, enabling seamless use of ethanol blends without compromising engine safety or drivability. Installation involves direct replacement and integration with existing fuel and intake systems, making it suitable for experienced installers. Ideal for daily driving, spirited street use, and competitive track environments, this package offers a complete solution for those looking to unlock the full potential of their STI with proven COBB tuning technology and hardware.

Overview

COBB Power Package

Fitment: 2015-2018 Subaru WRX STI

Part #: SUB004NG2S1FF-BL

Overview

The COBB NexGen Stage 2 + Flex Fuel Power Package with Blue Intake is a comprehensive performance drivetrain upgrade designed specifically for the 2015-2018 Subaru WRX STI. This all-in-one kit is engineered for enthusiasts seeking to enhance their vehicle’s power delivery, fuel management, and overall responsiveness while supporting flex fuel capability. Ideal for drivers who want a reliable, integrated solution to maximize their STI’s potential without piecing together multiple components.

This package combines advanced tuning with high-quality hardware, offering improved airflow, fuel delivery, and engine management. It supports a wide range of fuel types, including ethanol blends, making it versatile for different driving conditions and fuel preferences. The included Subaru Accessport V3 provides precise control and customization, allowing you to optimize your vehicle’s performance safely and effectively.

Key Features

This power package includes a carefully selected set of components designed to work seamlessly together:

  • Subaru Accessport V3 (AP3-SUB-004) for advanced ECU tuning and monitoring
  • SF Intake & Airbox with Blue Intake for enhanced airflow and filtration
  • Silicone Turbo Inlet V2 and Throttle Body Coupler to improve turbo response and throttle efficiency
  • High-performance spark plugs optimized for upgraded fueling
  • Top Feed 1050x Fuel Injectors and High Flow Fuel Pump to support increased fuel demands
  • Fuel Pressure Regulator, Fuel Rail Line Kit, and Fuel Rails for precise fuel delivery and system reliability
  • NexGen Flex Fuel Ethanol Sensor Kit and Fuel Pressure Sensor Kit for accurate fuel composition and pressure monitoring
  • COBB Vehicle Badge as a finishing touch to showcase your upgrade

Installation & Fitment

This package is designed for direct fitment on 2015-2018 Subaru WRX STI models. While many components are bolt-on, professional installation is recommended to ensure proper integration and tuning. Fitment should be verified against your vehicle’s specifications and the part number provided.

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