I was looking the Z-Xtreme 6 wire grounding kit at
http://www.z-xtreme.com/GroundingKit.htm
does anyone have any idea as if the grounding kits really do work/help the performance of the car?

I have read that they increase HP´s but I am not sure.

TIA

 

Try searching on this topic.

There are tons of threads.

Guy has sold over 600 of these kits.

I'm one of the happy customers.

Victor

 

Is the one you got from Z-Xtreme ?

Any difference in performance?

 

There's no noticable difference in performance. A lot of people report a smoother idle and a more responsive throttle. They sure look cool in any case.

I got mine from Z-Xtreme too.