The Agency Power 04-06 Subaru STI Side Feed Fuel Rail kit will have you safely making big power. The fuel rail system features -6 lines which are nylon coated in either red or blue with AN fittings for a secure fit guaranteeing you will never have any leaking issues. The new distribution block is mounted to the pitch stop mount under your top mount intercooler or front mount intercooler piping.
Equal length lines run to each fuel rail to ensure proper fuel distribution for even the most powerful STI. The 2 piece fuel rail system bolts in place of your factory units and seat securely on the injectors with the proper angle for the best and most precise spray pattern. The factory fuel pressure regular is bolted to the distribution block where the return line runs to the fuel filter. The AP distribution block features a 1/8 inch NPT brass fitting to run an external fuel pressure gauge. All 3 pieces are precision machined CNC 6061 aluminum and are anodized in either red or blue for a smooth show finish. Agency Power fuel rail kits include all hardware and brackets necessary for safe mounting.