That's right, another advancement in performance for the Subaru STI 2.5L from Agency Power. AP has once again engineered a product dominate of the competition. The STI fuel rail kit gives the Boxxer engine equal fuel delivery unlike the stock setup. This kit will solve all your fuel distribution problems that the stock STI has when trying to obtain more horsepower.
The biggest problem in increasing horsepower on the factory Subaru Boxxer engine is the fuel delivery. The factory system runs the fuel in series which tends to cause certain cylinders to obtain less fuel. In higher boost applications, these cylinders can lean out dangerously causing the motor to fail.
With more Subaru WRX 2.0L cars getting modified with bigger turbo's and more horsepower, it is essential to improve upon the factory fuel system. There are many different options for upgrading your fuel injectors on the market, and most of these options are costly. Agency Power now provides factory modified Subaru injectors that are tested to flow 740cc. This is a good option for cars pushing 300 wheel horsepower.
With the testing of our HUGE STI turbo kit, Agency Power needed more fuel to overcome the factory 550cc injector limitation of 350 crank horsepower. With many STI owners wanting to push the limits of their STI, more fuel delivery is much needed. With several different options available, Agency Power has just released 2 new options for STI owners wanting more fuel for their higher horsepower cars at an affordable price.
Agency Power has released their new Mitsubishi EVO VIII and MR fuel rail. This fuel rail is a direct replacement for the factory unit. The CNC machined piece is anodized in Agency Power Red. It fits with the stock fuel pressure regulator and fittings and can be set up to work with aftermarket units as well. The fuel rail also has a location to put an aftermarket fuel pressure gauge with no modification.
HKS Injectors are precision units engineered to deliver the fuel needed on high-performance applications for the Top Feed 550cc. When the Top Feed 550cc engine’s horsepower is limited by the factory fuel injectors, larger HKS Injectors can be used in addition to or to replace the factory OEM injectors.
TiTek Innovations Using Nippon Denso metal tip, long type 850cc side feed injector for more stable fuel delivery and durability compare to the short, plastic tip type. The kit includes collars, connectors, o-rings and all necessary hardware needed for the stock SR fuel rail.
TiTek Innovations Using Nippon Denso metal tip, long type 850cc side feed injector for more stable fuel delivery and durability compare to the short, plastic tip type. The kit includes collars, connectors, o-rings and all necessary hardware.
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