Cobb Stage 1 to NexGen Stage 2 Flex Fuel Power Package Subaru STI 19-21 - Blue SF Hose | SUB004NG2S2FF-S1-UP-BL

Fitment: 2019 - 2021 Subaru STI, 2018 Subaru STI Type RA. The COBB Stage 1 to NexGen Stage 2 + Flex Fuel Power Package is a cost - effective upgrade. It's designed for vehicles affected by downpipe removal, offering great performance while meeting legal emissions. If you own a COBB Stage 1 package, this is a perfect upgrade. Tuning is required. Package includes SF Intake System (blue hose), Airbox, Silicone Turbo Inlet V2, and more. The intake features heat - rejecting composite body and audible engine sounds. The airbox uses factory snorkel for cold air. The NexGen Flex Fuel Ethanol Sensor Kit is plug - and - play. Injectors work with stock fuel rail. All components offer high - quality performance and easy installation.

How to use: First, make sure you have a COBB Stage 1 Power Package already. Then, install the components in the package following the provided installation guides. For the fuel - related parts, ensure proper connections and check for any leaks. Before using the vehicle, get the necessary tuning done. Note: Tuning is required for this package to work properly. Maintenance: Regularly check the intake system for any debris or blockages. Inspect the fuel lines and connections for signs of wear or leaks. Clean the airbox periodically to keep the air intake clean. If you notice any abnormal engine sounds or performance issues, check the components and consult a professional if needed.