What is the differnece in the wbay and hks hyper grounding system?

 

the difference is just the Name. They all do the same

 

The HKS wires are probably thicker than most of the Ebay kits. I'm not sure if that really means anything though..

 

well one might be specifically made for your car, and have the proper lengths of wire for that. ebay is usually more generic. Yes, y2ksesteve... the gauge of the wire WOULD matter, especially on a grounding kit.