ok i few thingz i want to know,,i have inline 4 camry,,im alwayz revving it all the way,,for some reason,,i love driving it hard,,it brand new,,at the rate im driving how long do u think it would last,,or would it keep running for a while,,also another question i have is that i thinking of purchasing a factory sub for my camry from toyota,,i have the basic system,,so if i get that sub,,will i also need an amp and will it make a big difference,,and another question is,,im thinking of putting an intake in it,,what kind should i get taht would show a difference