Good brake response is crucial in a high performance car, and yet many do not use stainless steel braided units. As a result, the brake pedal feel is not as solid as it should be, and braking feel and response time are limited. GruppeM steel-braided lines limit line flex, forcing all the hydraulic fluid to operate the brake calipers in an instant with zero lag from line expansion. High performance brake lines are a must for anyone involved in high performance driving, especially on the track.The GruppeM brake line kit delivers the patented swivel system to drastically improve workability. The thick walled stainless socket is simply not available on other brands. Dynamic stress on joints is dispersed via the Life Support Sleeve technology. Stainless mesh hose with three-layer structure ensures optimal performance and longevity. On Carbon units, connections are manufactured from carbon steel (matte finish). OnStainless units, connections are manufactured from stainless steel. Both front and rear brake lines are included in all brake line kits.