These are the same brake lines we use in our performance kits. They are extended in length, stainless steel braided and kevlar reinforced with an extra plastic layer for added protection. They come with everything you need to install them to the OEM mounts and fittings. These are 33.5″ in length (3.5″ longer than stock). These are pressure tested to 4,500 psi and meet Federal D.O.T. MVSS-106 standards.