I hear they improve idle and driveabilty... is this true? What is it actually doing for the car?

 

according to what i've seen, results seem to vary. people claim you can just upgrade the stock grounding points with bigger gauge wires and it will yield the same improvements as the hundred dollar kits. but for the most part, people see easier starts and smoother shifts (in autos)...i'm sure theres some reviews here on ht if you search.

 

I have one...and yeah it did smooth everything just a bit...

i however still have a rough idle and am going to try a voltage stabilizer

i dont wanna bump my idle

 

I work with electronics, you have a giant grounding kit already! Its called the body.
(Unless you got fiberglass LOL )

 

Buddy Club has dyno results! I'm thinking of getting it