Pre-bent brake lines are available in OEM or stainless material.
Brake lines will come semi-pre-bent if a custom width rearend and/or rear disc brakes are selected. Customer must bend, cut and flare one end.
OEM material is recommended for semi-pre-bent lines, or if you plan to modify pre-bent lines, as the stainless version is difficult to bend and flare.
OEM rubber, or DOT stainless rearend to body flex hoses are available.
You can choose rearend combinations that were not offered by the factory, so please make sure you know what you have before you order. What you have and what the car was built with are often two different things.
See also Front and Front to Rear Brake Line Selectors.