I'm currently working on an install and used a single T-spec distribution block and a T-spec inline fuse for my dual amp setup. It looked like the brand that would come in the exile kit, so figured it must be pretty good stuff.

The block I used handles the positive and negative feeds and 0 gauge in 4 gauge out. I haven't even turned the system on yet, but seems sturdy enough.

http://www.amazon.com/T-Spec-V12DB-1...ribution+block