QUOTE(RoxyMunky @ Mar 20 2009, 09:25 AM)
i think you need to take off the current VS cz there wouldn't anymore place to install that Powerbooster at the side of the battery. Somemore, if you've installed cable to power up your subwoofer, then you battery terminal will be clogged with wires...
therefore, its advisable to take off.

Thanks for the reply bro, how are you ? Actually some cars cannot do well with 2 units of VS. The car will feels sluggish compare to one Power Booster only. Tested with few members here and believe me, its a big different!
QUOTE(yeokeeyie @ Mar 20 2009, 09:45 AM)
tat mean i juz can use each of tat only ?can give me some idea to get which better ?
Depend what VS on what car. There are few cars fitted with Pivot and Power Booster, got improve on pick up and smoother acceleration and louder sound system, but when removed the other brand ,the pick up even better and sound system got even louder , so the owner decided to remove the pivot. Pivot is good just that you need the whole package of pivot stuff like Pivot ignition, Pivot Raizin spark, Pivot earth, Pivot Raizin etc etc to gain the overall improvement.