you know, I think DIY is better than using the Arospeed cables. I've heard that they kind of suck. The Hyperground system really works, but you are limited to 5 wires:
Originally posted by xivera
Hyper Ground/ Earthing kit ground points
1) battery to chassis ground (opposite the battery... Also, covers 1 of the big 3)
2) battery to intake manifold
3) intake manifold to opposite side of the engine head (in the front)
4) from the engine head to the tranny
5) from the engine head back to the battery
I guess it would be either Hyperground, DIY, or both.