Agreed, but there are differences between the kits. The rca's to start, but yes, why pay more. If it will do it, PERFECT. I strongly suggest that you use 4 guage though, whatever brand you choose doesnt matter, but please use 4 guage, O.K.

IMO 8 guage is only good enough for one 10 inch sub. You can blow a sub from underpowering it to. I like to be extra careful. So do you know what kind of subs/amp your friend is giving you yet?