Well this is the 3rd time this month that I had to recharge my battery. Could it be my alternator? I just got my ITR last year brand new. Or could it be alot of stripped wires on my ECU. I also have DSM 450cc injectors and a electric fuel pump wired up. I have no sound system besides a cd player... what could it be?

 

It could be a bad battery, sometimes they just go for no aparrant reason.
None of the things you mentioned should drain the battery while it's off, make sure the interior/trunk lights are off as well.

 

If your alternator is not charging your battery that could be the case. You could take it and have it load tested while the car is off to see if there is something draining it as well. Could be a bad battery also.

 

autozone is your friend, they check batterys, alternator and sumthing else all at one time.