you can reuse the stock brake line holders off stock shocks , on SOME coilovers.

Examples are - EG / EK / DC and CL9 front shocks can reuse the brake line mount , on TEIN and KONI suspension. Bang it off and place it back on. Its advised via the intsructions and should be done when possible. Not sure what other coilovers or shocks can reuse the mounts.