I see some sellers selling a 7 ground wire set for all kinds of cars. They claims to give Faster Throttle Response, More Power & Torque, Better Ground Electric Current Passage Way, 5 to 10 Horsepower Increase. The 7 ground wires are connected to the battery, intake manifold, engine block, head lamp, cylinder head, alternator, and transmission.
Does it really work on all the things it claims to do?

 

here's a quick way to determine if you're being BSed.

If it has the words "results may vary"

don't buy it.

 

I had it on my tiburon and it seemed more stable but the "hks" ones on ebay (they arent hks) are just cheapers...its more of just a decoration peice for your engine...you choose to get one...get a legit one...

 

you could make your own, and end up with perfect fitment rather than a bunch of oversized cables running all over.