Fitment: This power package fits 2019 - 2021 Subaru STI and 2018 Subaru STI Type RA. It's a high - value kit! The COBB Tuning NexGen Stage 2 + Flex Fuel Power Package is designed for vehicles affected by downpipe removal, offering great performance while meeting legal emissions. Note: Tuning is required. Package includes: Accessport V3 (AP3 - SUB - 004), SF Intake System (blue hose), airbox, silicone turbo inlet V2, throttle body coupler, spark plugs, top feed 1050x fuel injectors, AEM high - flow fuel pump, fuel pressure regulator for fuel rail kit, fuel rail line kit, fuel rails, NexGen Flex Fuel Ethanol Sensor Kit, fuel pressure sensor kit, and COBB vehicle badge. Accessport features a large, full - color, high - resolution screen, customizable multi - gauge display, in - vehicle mount with on/off switch, and is easy to use. The intake has a composite body for heat rejection, integrated velocity stack and airflow straighteners, and makes engine sounds more audible. The air box is made of 16 - gauge aluminum, uses the factory snorkel, and offers cold - air intake benefits without water ingestion issues. Injectors have a nominal flow rate of 1065cc/min @ 43.5psi, are matched sets, and come with tuning data. Fuel rail lines are stainless - braided PTFE, with high - pressure capacity. The fuel pressure regulator is OEM Subaru, ethanol - compatible, and abrasion - resistant. Fuel rails are CNC - machined from 6061 billet aluminum with a black anodized finish. The turbo inlet is 6 - ply silicone, increases airflow, and is a direct OEM replacement. The throttle body coupler is 4 - ply silicone with a COBB logo. The NexGen Flex Fuel Ethanol Sensor Kit is plug - and - play and integrates well with the fuel rail line kit. The fuel pressure sensor kit enables fuel pressure monitoring. WARNING: (http://www.p65warnings.ca.gov)
Using this COBB power package is a great way to enhance your Subaru STI's performance. First, make sure you have all the parts in the package. When installing, follow the instructions carefully. For the Accessport V3, mount it in your vehicle using the provided in - vehicle mount and connect it properly. The intake system, airbox, and other components need to be installed in the correct order. Remember, tuning is required for this package to work at its best. You can use the data provided for the injectors with the Accesstuner Software for tuning. As for maintenance, regularly check the fuel system components like the fuel rails, lines, and injectors for any signs of wear or leaks. The air filter in the intake system should be cleaned or replaced according to the manufacturer's recommendations. Also, keep an eye on the fuel pressure using the fuel pressure sensor kit. If you notice any faults in the fuel system, the sensor will alert you. And don't forget to check the silicone components like the turbo inlet and throttle body coupler for any signs of damage. Always refer to the official COBB documentation for detailed maintenance schedules and procedures.
