if u get the r33 gtst kit for the walbro it comes with the pump, the rubber mount to use in the stock cradle, a new hose for the top of the pump and 2 new hose clamps and the sock on the bottom of the pump too
only mod needed to do is cut the old positive and negative wires and join the new ones with either crimps or solder/heatshrink
but as stated, if going for higer power go for a tomei as they flow much more
the kit was about 190 delivered from ebay, gss341 i think the part number was