JDM Ground Wire Kit??

[Mntnbkr]

Does anyone know anything about this - has anyone bought and used with success? It is an inexpensive upgrade IF it is true - just want to gain some confidence that this is not snake oil/too good to be true. Thanks for any 2cents.
Here's the ebay link:
http://cgi.ebay.com/ebaymotors/MAZD...01QQihZ010QQcategoryZ6755QQrdZ1QQcmdZViewItem

 

[mazdadude]

I have pondered on these as well, (huh) and have come to the following conclusion:

They won't hurt, they could help, although in most instances, it is not likely to make a difference unless you have an existing grounding problem.

However, I feel these fall into the same category as the Splitfire sparkplugs, fuel magnets, and the vortex Tornado air thingy. (gun)

Keep Zooming!

 

[DeanSweet]

I don't own a Mazda5, but installed one of these kits on my 3.5 Pr5 and yes, it helped a bit with the dimming lights with the stereo and slow to roll down windows when it was colder outside. I was a bit leery of the idea too, but now that I think about it well worth it for me considering how cheap it was. The wires are fading a bit now but probably just buy another one and replace it.

 

[2cam16]

However, I feel these fall into the same category as the Splitfire sparkplugs, fuel magnets, and the vortex Tornado air thingy. (gun)

My thoughts too. i can't see how you can gain 5-8 hp off of these gadgets.

 

[Rocket]

If it were that easy to get 8hp, the factory would have done it!