This weekend I worked on my voltage stabilizer!
That was a fun project.
Basically a voltage stabilizer is supposed to do:
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How This Item Works
The vehicle's ECU is highly dependant on all sensors that provide data and signals to coordinate different parts in different places of your vehicle. The vehicle's ECU can analyze if the voltage flow on your vehicle is accurate. What this BELLON does is enhance the voltage and stabilize it, so all the components in your vehicle such as audio, lamps, sensors and electronics work to their maximum potential. By stabilizing the voltage from the battery of your vehicle, the load of the battery is reduced, resulting in increasing engine performance.
 
The Benefits
A. Increase torque and horsepower.
B. Improve fuel efficiency. Save 10%~25% more gas.
C. Improve engine response. Quicker Engine Start; Better Throttle Response.
D. Stabilizes idling as well as increases air conditioning efficiency.
E. Quick engine start by improving ignition system.
F. Lesser engine noise.
G. Optimize electrical equipment performance to extend the lifetime of car.
H. Build-In Electrical Noise Filter. Reduce stereo's interference and improve the brightness of headlights.