These COBB Fuel Rails are designed for 2008 - 2021 Subaru STI models. They offer increased fuel capacity and ensure consistent performance at each injector. Crafted from 6061 Billet Aluminum using CNC machining, they feature a black anodized finish with a laser - etched COBB logo. Pre - installed - 8 AN to - 6 AN fittings make for easy setup with the COBB Fuel Line Kit. Compatible with Injector Dynamics Fuel Injectors, they support parallel fuel delivery. Each kit includes phenolic thermal spacers and stand - offs to create a heat barrier between the cylinder head and fuel system. Pair them with the COBB Fuel Line Kit and Fuel Pressure Regulator Kit to build a complete fuel system. Note that installation can be challenging, and an installation guide is provided.
Using these COBB fuel rails is simple. First, refer to the included installation guide as the installation process can be difficult. Make sure to connect the pre - installed - 8 AN to - 6 AN fittings properly with the COBB Fuel Line Kit. You can use either stock style or Injector Dynamics Fuel Injectors for installation. When it comes to maintenance, keep an eye on the black anodized finish. If you notice any signs of wear or damage, it might affect the performance. Also, check the connections regularly to ensure there are no leaks. In terms of heat management, the phenolic thermal spacers and stand - offs are there to protect the fuel system, but make sure they are in good condition. Pairing these fuel rails with the COBB Fuel Line Kit and Fuel Pressure Regulator Kit will give you a complete and efficient fuel system.
