If you drive hard, you should consider upgrading your BMW X4 brake lines. Not only will your vehicle perform better, they will eliminate a weak spot in your BMW X4 braking system. A steel braided brake line kit will contain both front and rear flexible lines of the proper length and with the proper fittings for your vehicle, ensuring an easy installation. Once your new brake lines are bled and refilled, you will experience much more confident braking and the knowledge that your BMW X4 brake lines are in tip-top condition.

Although many people don't think of it this way, stock brake lines are a wear item that eventually need to be replaced for peace of mind. When BMW X4 brake lines have had a hard life, they can become brittle, swell up, or even collapse, which can cause brake failure. Replacing your original BMW X4 brake lines with quality aftermarket steel braided brake lines eliminates the weaknesses inherent in standard rubber hoses, and offer a much firmer pedal feel and more predictable braking.

Q: What do brake lines do? Why buy brake lines?
A: Brake lines connect the master cylinder to the calipers. The brake lines contain brake fluid so the fluid can push against the caliper every time you press on the brakes, thereby stopping you. Old rubber brake lines expand under pressure, so that instead of the brake fluid pushing the caliper, the fluid stretches the brake line and reduces the maximum performance of the brakes by making your pedal feel spongy. New brake lines combat this problem giving you maximum braking performance and a nice tight pedal feel.

Q: Do brake lines come in sets of 4?
A: Brake lines are sold in sets of two usually and are assumed to be for the front, unless otherwise noted. Please check the product description on our site for more details.

Q: How do you install brake lines?
A: Brake lines are installed by removing your factory rubber line fittings. Once the factory rubber brake line is removed, replace it with your high quality stainless ones. Brake fluid will need to be replaced and the system will need to be bled.