Pressure testing to 4500 psi means that our Century brake lines possess Herculean endurance under the most rigorous stopping conditions. And, our Century brake lines have passed DOT testing to ensure the ultimate in performance when you depend on them most. Other brake line options include premium inner-line Teflon coating that resists expansion and degradation from brake fluid exposure, abrasion resistant covers and T.U.V. approval. And, of course, our Century brake lines have extended warranties. Join thousands of customers who count on us for quality automotive products and customer service, guaranteed!