StopTech Stainless Steel Braided Brake Lines provide a quicker, firmer, and more consistent pedal response by maintaining consistent brake pressure. These lines are specifically designed for vehicles equipped with Rear Big Brake Kits (BBK). The kit features a teflon inner line covered with a layer of stainless steel weaving to prevent expansion under high pressure. The kit includes: 2x Rear Stainless Steel Brake Lines (P/N 950.42503), 4x Copper Crush Washers, and all necessary mounting brackets for a direct-replacement fit.