Hi,

Do these things work?
Click Here

 

i put them on my car and it helped stable out the feel of the throttle and how it opened and closed. the car also was more stable the higher the rpms got... over all i would rate them a B+

 

I think the voltage stabilizer is a good idea but I wouldn't waste money on a grounding kit. You can make it yourself out of some 4 gauge available at your local audio shop and a few crimps rins, gold if you want show nickel plated if you want to save some coin. Just my thoughts. If you are deadset on cosmetic then go with the prefab ground kit, otherwise just make it yourself. And yes doing the gtround upgrade made my car idle smoother and throttle response was slightly nicer. worth doing either way.

 

^ditto.. u can make ur own ground kit pretty easily and cheap. ill be making one at some point in time, just have no idea when ill get around to it...