I am getting a Soundstream XTA880.2 amplifier. its 220x2 at 4 ohms. the thing i was wondering is if i am using this amp for subs (i know its 2 channel instead of mono but soundstream has some kind of bass thing on this amp that is supposed to be awesome) and i have an 8 guage wiring kit do i need to upgrade to a 4 gauge or even 0 gauge wiring kit? will keeping the 8 gauge affect performance? thanks alot guys.