I recently added a new over flow bottle its a small hard plastic "travel flask". I drilled a hole in the side and a hole threw the cap on top. The hose that goes threw the cap goes all the way down to the bottle of the bottle, and have not had a problem with it pulling the coolant out. the hose that's on the side doesn't go in the bottle, it has a connector on the side of the bottle, works fine. The problem im having is I topped my coolant in my bike to the top and filled a little in the coolant overflow bottle. But my thirsty ass bike keeps pulling all the coolant out of the over flow bottle, either that or somehow its leaking or evaporating . As for the wiring I just used connectors to connect to the stock hoses and attached longer nylon hosing.