In order to make sure enough fuel is being delivered at high rpm, a walboro fuel pump was installed.

The following parts were needed:

Phillips Screewdriver

8mm socket for fuel pump cover

12mm socket for seat bolts

Pliers

Flathead Screewdriver

*** WARNING: We aren't responsible for your mistakes. Make sure to relief fuel pressure by pulling the white plug at the pump and running the engine OR wait overnight after disconnecting the battery. You want to relief fuel pressure in the lines. In any case MAKE sure you disconnect battery

First take out seats by using the 12mm socket in the front of the seats. once you pull the bench seat, you can pull the rear top section by removing another 4 12mm bolts.

On the rear passangers side(behind the front passanger seat), there is a cover, and can be taken out by prying off a few plastc clips. Also to make things easier, the middle bar should be removed to completely remove the cover.

Once the cover is out of the way, you can see the fuel pump cover. Using a phillips screewdriver, you can remove this part and place it aside.

Below this cover you can see the fuel hoses leading to the pump. Two of the hoses have a simple clip. You press on the sides of the clip and pull the hose at the same time. To remove the last hose, you need some pliers to slide the clip off.

Once you have the hoses off, you can remove the 8mm bolts around the pump lid. Next you wiggle the pump around by lifting and making sure nothing is in the way.

Be very carefull not to damage the fuel level sender. You will see what looks like a wire with a float. This is what give the fuel level on the drivers gauge.

Once the pump is out, you will want to flip it and empty any fuel out of the pump/lines.

Next remove the bottom black part of the box encapsulating the fuel pump filter sock. Next slide the white cover off. It has small clips on the side that prevend this.

Finally Slide clips on fuel hose that connects the fuel pump to the pump assembly, pop the pump out, and unclip the power cable from the pump.

The stock pump was new, so the sock was used on the walboro. The clip was pop off using a flathead screwdriver. Then a tiny socket was used to push down on the clip onto the new walbro fuel pump.

NOTE: A kit was bought for the 2007 STI, but looks like it wasn't needed after all. The original connector and filter sock were used.

Slide the pump on with a new piece of hose and put the rubber insulator on the end of the pump. Next slide the pump with insulator using hands and flathead screwdriver if needed. Once you get the fuel pump in place, align the rubber insulator and make sure the hose clips are on nicely.

Once you checked everything over, take the fuel pump level sender arm and slide it towards the top. This will make it easier to install the fuel pump assembly. Once the assembly is slid through the fuel tank opening, just shake the assembly a little--this should make the fuel pump arm drop.