IAG Side Feed to Top Feed Fuel Rail Conversion Kit for 2004-06 Subaru STI, 05-07 LGT, 04-05 FXT (Black Finish).

The previous generation Subarus that utilize side feed injectors are limited to specific flow sizes as well as a large expense to completely convert the system over to top feed. IAG provides a simple fuel rail solution that lowers the conversion cost to top feed injectors on older STI's, Foresters XT's and Legacy GT's. The conversion kit allows you to keep your side feed TGV's in place, simply swap in our injector conversion bosses, new conversion rails, hardware and your choice of top feed injectors. The IAG Performance Side Feed to Top Feed Fuel Rail Conversion Kit is designed to increase the power ceiling on your Subaru's fuel system. The factory fuel rails function in a series, which means that each cylinder's fuel is delivered after the other. As horsepower rises past the 350whp mark, the stock rail often does not have the capacity to deliver fuel to the last cylinder effectively. As a result, that last cylinder can run lean, which can result in catastrophic failure. The IAG bille