Well the wires look nice and i noticed brighter dash lights but thats about it really. You could easily get some decent speaker wire and do your own with a few connectors and a soldering iron.
i did mine with speakers/amplifier wires. looks good and the only difference was a bit higher idle? bit this also could have been to something else as you know how much starlets like to play with idle. anyway its better than that shitty peice of oem earth lol