So I'm thinking about upgrading the brakes. I checked up on the Rotora groupbuy and it sounds pretty good. I believe it comes out to about $366 for F/R slotted rotors, and F/R Axxis Ultimates.

Then, I noticec on Comptech's website that they have C/D rotors. For the front they are $135 each, so that's $270. Then pads would be $104 so total it would be $374 for Comptech Front C/D rotors and F/R Axxis Ultimates. Here's the predicament:

I don't know shit about brakes. All I know is I'm on a limited cash supply here, and I don't know if its worth swapping out the rear rotors or not as well? For example, If I went w/ the Rotora GB, will getting the rear rotors really do anything? Or could I just pull up getting Front rotors and 4 pads? In that case, should I get the CT rotors? Has anybody used em? I've tried searching and can't find shit! Also, what the hell will the SS brake lines do? Are those even worth looking at? Thanks