Fitment: This power package is designed for 2015 - 2021 Subaru STI and 2018 Subaru STI Type RA. Package Includes: The package comes with a Redline Carbon Fiber Intake, Silicone Turbo Inlet V2, Throttle Body Coupler, Spark Plugs, Top Feed 1050x Fuel Injectors, AEM 340LPH High Flow Fuel Pump (E85 Compatible), Fuel Pressure Regulator for Fuel Rail Kit, Fuel Rail Line Kit, Fuel Rails, NexGen Flex Fuel Ethanol Sensor Kit, Fuel Pressure Sensor Kit (5 Pin), and a COBB Vehicle Badge. Features: The COBB Stage 1 to NexGen Stage 2+ Flex Fuel Power Package offers great value. It's a solution for vehicles affected by downpipe removal, providing similar performance while meeting legal emissions standards. If you own a COBB Stage 1 Power Package, this is the upgrade to the NexGen Stage 2+ Flex Fuel Redline Carbon Fiber Power Package. Redline Intake: Made of 2x2 twill carbon fiber with a high - quality gloss finish and bespoke COBB Redline badging. It has an integrated carbon fiber scoop, is compatible with COBB OTS Maps for the standard SF Intake, and is easy to install. However, it doesn't fit with the COBB Radiator Shroud, and minor imperfections in carbon fiber parts are normal. NexGen Flex Fuel Ethanol Sensor Kit: Includes a NexGen Flex Fuel Module, a plug - and - play wiring harness, and an ethanol content sensor with a bracket. Injectors: Work with the stock fuel rail, have a nominal flow rate of 1065cc/min @ 43.5psi, and come in matched sets with minimal flow rate variance. Fuel Rail Lines: Stainless braided PTFE lines with high operating pressure, double swivel - 6 AN hose ends, and are plug - and - play with the COBB Fuel Rail Kit. Fuel Pressure Regulator: An OEM Subaru regulator that's plug - and - play, ethanol - compatible, and has abrasion - resistant sheathing. Fuel Rails: CNC machined from 6061 billet aluminum, with a black anodized finish and laser - etched COBB logo, and allow parallel fuel delivery. Turbo Inlet: 6 - ply silicone in stealth black, increases air flow to the turbo, boosts horsepower, reduces spool time, and improves throttle response. Throttle Body Coupler: 4 - ply silicone in stealth black, with a pad - printed COBB logo, and is a drop - in replacement. Fuel Pressure Sensor Kit (5 Pin): Has OEM quality connectors, a billet aluminum sensor adapter, and is required for COBB NexGen Flex Fuel OTS Maps. Spark Plugs: Feature a laser - welded iridium - tipped center electrode and a set of 4. AEM High Flow Fuel Pump: Tested at 340lph @ 40psi, compact in size, and compatible with various fuels including ethanol and methanol.
Using this power package is a great way to enhance your Subaru STI's performance. First, when installing, make sure to follow the installation guides that come with each component. For example, the Redline Intake is easy to install, but note that it won't fit with the COBB Radiator Shroud. The turbo inlet and some other parts may require tuning, so it's a good idea to have a professional handle that part. When it comes to maintenance, keep an eye on the fuel system. Check the fuel injectors regularly to ensure they are working properly. The fuel pressure regulator and fuel rails should also be inspected for any signs of wear or leaks. The AEM High Flow Fuel Pump is compatible with different types of fuels, but always use the fuel recommended for your vehicle. If you notice any issues like a decrease in performance or strange noises, it's best to have your vehicle checked by a mechanic. Remember, this package is designed to work together, so all components should be maintained to get the best results.
