It DOES help. The car runs noticeably smother and responds off idle much better. I had fun making it, but I spent about as much as some of the kits cost on this board. Now I will GTECH it and see if any noticeable increases from my previous measurements.

 

Keep us posted (even though I dont trust gtech)

 

I've been following this whole earthing/grounding thing for a bit and it'll be one the first things I put on the car. But the cost really shouldn't exceed 30 or 40 bucks. I just bought 13 feet of 4 gauge grounding wire off of eBay for less than 18 bucks shipped. Just my 2 cents on all these postings...

SC Enthusiast 6MT @ MSRP in Bay Area
Still waiting (Delivery sometime in January)

 

13 ft of 4 Ga. stereo grounding wire @ 2.50 ft = $35
15 terminal conectors = $25
heat shrink, locktite, washers, bolts = $7

Will run Gtech tonight. I dont expect any gains, but who knows?