if you feel you want to replace your wires, do so, i cant tell you what kind of condition they are in from the net but perhaps you might have to.
As for advice on what to buy, just buy the cheapest ones you can find. Hell if your like me youd just go buy generic cable and cut the lengths yourself. The only thing that 8mm wire is better for is the insulation, it gets rid of the whine that the stereo has. Stock wires had somewhat bad insulation, so when youd get above 2k revs, all the built up electricity creates a static and puts hum in the stereo. No performance will be gained on 8mm wires unless perhaps your running some extremely tuned system running on alcohol or methanol.
<span style='font-family:Geneva'><span style='font-size:14pt;line-height:100%'><span style='color:red'>Fox</span></span> <span style='color:gray'>the Pirate</span>
Diplomacy is saying "nice doggy" until you find a rock.</span>
I live my life one quarter mile at a time, and for those 23 or more seconds I'm free.