hi guyzi wanted to ask that do i have to change my 2009 corolla battery if i install 2 amplifiers for 1 woofer and componenets
thanks
Definitely.
If you want your headlights and other electronics to function properly.
Heavy sound systems often require more amperes for their functioning and if you keep running it on the stock one then you might notice that headlights and other lights will get dim on heavy bass.