stabilizer kit is basically voltage stabilizer,it keeps the voltage of the car constant all rpms n dsnt let the voltage drop ,the good voltage for a car is 12votls but usually the car dsnt get 12v,this is where the stabilizer comes in
the grounnd wiring kit helps u to
regain lost hp,
increases the current flow
decreases resistance
smoother idling
helps in better performance of engine n even better fuel economy
keep the electrical systems intact
and helps to stabilize the engine at high rpms