The Stop Tech stainless steel brake line 950.40511 is designed for the 06-11 Civic EX Si and 06-07 Acura CSX models. This line includes banjo bolts, brass washers, and features a PTFE lining for enhanced performance. this rust-resistant brake line with a protective sleeve attached is a high-quality performance part suitable for these specific vehicle models. It is made of durable stainless steel material and has a female threaded end fitting type for easy installation.