I swapped to the sport brakes a while back and you do need the hard lines that go to the caliper.

Brakes
 

I am upgrading the brakes on my base 1020, 370z I damaged the nipple inside the caliper brake linen, can that be fixed. (Stock brake lines wil not work I proved it!) Do I need to buy a new caliper?

Which nipple?

:confused: upgraded from the 19s to the 18s? Dont know if I would call it an upgrade... but for winter wheels or something , it would be a winter upgrade... but still a little confused lol

Well, if he's tracking, I can totally understand his reasoning... :)

lol yeah i know i was just kiddin. : ) pimpin 18's tho atm.

brakes
 

If you look inside the caliper where the brake line goes there is a little nipple inside where the line seals. well I tightened the stock lines and crushed that little nopple now I am afrraid if I dont get that fixed the line will leak. However my question is can that be fixed I dont want to but another caliper if I dont have too?

I'm pretty sure I know what you're talking about and I'm not sure if that is a permanent piece of the caliper or not. But I will reference you to these two links. One is RCZ's how to rebuild thread for the caliper and the other is the parts page for the front caliper.

440 Front Brake :: Brake :: Genuine Nissan Parts :: 370Z Parts (Z34) 2009-2010 :: Nissan Parts, NISMO and Nissan Accessories - Courtesyparts.com

http://www.the370z.com/diy-section-d...r-rebuild.html