stainless steel braided brake lines - how many?

[Kenneth Keith]

Hello,

I'm collecting the final parts to put budget big brakes on my 200q20v.
 I have rotors, brackets, calipers, pads, anti-squeal discs, and
mounting bolts & washers.  Now I'm looking to get some DOT-approved
stainless steel braided brake lines.  (what else do I need? I didn't
get pad sensors, for example)

Does anyone know why there is a 6 piece kit listed for 200's and only
a 4 piece kit listed for ur-S4's?

http://www.paragonperformance.com/audibrk.html

Thanks,

Ken