USP Stainless Steel Rear Brake Lines - Audi RS6/RS4

Stainless steel brake lines replace your factory rubber lines and provide more consistent braking. Your car's brake system operates at over 1,000psi under hard braking conditions; the factory rubber lines cannot perform and begin to expand. This leads to a "spongy" brake pedal or a slight delay in brake engagement. This can be catastrophic when driving in spirited race conditions. Stainless steel brake lines replace these factory lines and with a stainless steel woven exterior, these lines will not expand even under the harshest conditions.All USP brake lines are a direct replacement for the factory brake lines and can be installed in just a few hours.

  • Includes 2 rear brake lines
  • Installation hardware (if applicable)
  • Pressure tested to 3000psi
  • Meets Department of Transportations (DOT) standards



  • Models this Product Fits
    Make Model Year Engine
    Audi RS6 C5 (03-2005) 4.2TT
    Audi RS4 B7 (06-2008) V8 4.2 FSI

    More Information
    Manufacturer USP Motorsports
    Engine 4.2TT, V8 4.2 FSI
    Make Audi
    Model RS4, RS6
    Year B7 (06-2008), C5 (03-2005)
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