Oven igniter has two wires. One of the wires comes from the oven control and the other goes to the valve. Igniter wires either connect via ceramic wire nuts or a plastic plug. Since this is a Modern Maid oven, chances are wire nuts are being used. New igniters usually come with a pair of high temperature resistant wire nuts. Replace the igniter using the wire nuts provided.
If you don't see any connection in the igniter wires (not very likely, but possible), you can simply cut the wires about 6 inches from the igniter and re-connect the new igniter using wire nuts.
Hope this helps.