Could haveing a high power system be robbing me of horsepower becuz of the draining of the battery???

when i was ideling it took the RPMS down to like 200-500 RPMS depending on the frequency so while im driveing am i robbing myself when my system is on???

 

oh and not haveing new plugs could that harm my performance or my engine..??

 

A high end sound system will not rob horsepower.
If your plugs aren't good your car will not run like it should and therefore it'll take away from performance a bit.

 

some systems do rob you ofpower if you got alot of watts and you have it on full blast withoutits own battery systemand bad spark plugs do decrease some hp

 

your system adds weight to your car and slows it down. just like all the other crap people pile on them. lets add 500Lbs of **** then wonder why its slow.

 

thank you racerx55its about time someone tells that to these people i dont even have a sterio leave thatto the ricers oh and dont forgetthe dubsall show no go