does anyone have ground wire kit ...does it actually help ? i was just wondering if it was worth any investment for my N/A fc

 

Waste of money. You could recreate basically the same thing with parts from an electronics store for a tenth of the price, and unless there's actually a grounding problem will improve nothing. Spending even less money restoring the factory ground points will give you the same improvement if they need it (which they probably do).

Read this: http://aaroncake.net/RX-7/grounding.htm