The DFC rear brake hose for 2007–2008 Audi RS4 models is a direct-fit replacement flexible hydraulic line that restores brake fluid routing to the rear caliper and helps maintain proper pedal feel. It is specified for the rear location on those model years, making it a straightforward OE-style plumbing replacement for routine brake system maintenance and repair.
DFC 07-08 Audi RS4 Rear Brake Hose