There were requests for info abou the Stabilizer Units. I would recomment the Sun Hyper Grounding System with the Sun Hyper Voltage System. You can also buy the Voltage Stabilizer seperate and it will work with any grounding Wire Kit. The sun seems to be the best and there are several different units you can buy according to the results your looking for. Here are the different units.
1)SUN HVS Type MR for Multi-range rev., available in Gold and Silver housing.
2)SUN HVS Type LR for Low to mid range rev. for city driving. Performance with increase of torque. Silver housing.
3)SUN HVS Type HR High rev. for sport driving. Performance with increase of horsepower Silver housing.
Id recommend checking this link outhttp://www.sigmaautomotive.com/EGS/egs.php