Part #: TR - FS1010. The Tomioka Racing fuel rail kit for Subaru is an ideal solution for high - powered Subaru EJ engines. It provides an abundant fuel supply to keep your engine running at its best. Crafted from CNC - machined billet aluminum with an AN8 diameter, this fuel rail can deliver a high - flow fuel supply. The kit includes all necessary mounting brackets, making installation a breeze. The Tomioka fuel rail system comes complete with an adjustable fuel pressure regulator, a fuel pressure gauge, fuel lines, and fittings. The fuel rail kit uses Russel Performance Pro - Classic hoses wrapped in lightweight nylon fiber. These hoses are abrasion - resistant and rated for a maximum pressure of 350psi, suitable for fuel, oil, and anti - freeze. Paired with high - quality precision - machined aluminum fittings, they meet all your plumbing needs. This TR fuel rail kit is proudly assembled in the USA. Features include a billet aluminum fuel rail, lightweight nylon - braided fuel lines, a billet adjustable fuel pressure regulator, synthetic rubber fuel lines rated at 350 PSI, and an oversized AN8 I.D. Kit contents: fuel rails, fuel lines, mounting brackets, and an adjustable fuel pressure regulator with a fuel gauge. Note: Please select whether your vehicle uses a top - mount intercooler or front - mount intercooler setup.


Using the Tomioka fuel rail kit is straightforward. First, make sure you've selected the right kit for your vehicle's intercooler setup (top - mount or front - mount). Then, use the included mounting brackets to install the fuel rails in your Subaru STI 2007 - 2021. Connect the fuel lines to the appropriate places, and attach the adjustable fuel pressure regulator and the fuel gauge. When it comes to the fuel pressure, you can adjust it according to your engine's needs. For maintenance, regularly check the fuel lines for any signs of wear or damage, especially the lightweight nylon - braided ones. The synthetic rubber fuel lines are rated for 350 PSI, but don't over - pressurize the system. Keep an eye on the fuel pressure gauge to ensure everything is within the normal range. If you notice any leaks or abnormal pressure readings, stop using the vehicle and have it checked by a professional.