I didn't get that but wonder if anyone did? Feel any differences at all hehe?

 

There are few members who had them installed by the dealer but most opted for aftermarket kits for substantially less money. The gains from grounding kits are subtle. You may see a slightly smoother idle and slightly smoother accel but nothing major. How much improvement depends on how "ungrounded" your car's electrical points are.

Speedlimit..

 

I have noticed maybe a 3-5hp difference, freaky smooth idle, and great throttle response! great buy!

 

DO NOT Buy the factory ground kit.!!!!!!!!!!!!!!!!! Its over prices by hundreds of dollars. All ground kits are the same. Just make ur own $20 or buy some aftermarket one. Forget the circle earth systems too. I got my kit for $25 and installed it myself in about 10 minutes. Its just WIRES with crimped edges. Find a set for 20-30 bucks.