Superior Friction’s supplier of Street Sport Rotors is an ISO 9001-certified company that was founded in 1987. The company specializes in the development and manufacture of high-level performance/racing brake systems.
With outstanding production and processing capabilities, the company supplies the following products:
- OE high performance replacement discs for vehicles such as the Nissan R35 GT-R & Audi RS4



The Audi A4 RS4 V8 Rotors will perform optimally with the StopTech Sport Brake Pads or the EBC Yellowstuff Brake Pads.
StopTech Sport Brake Pads
- Formerly known as Street Performance Pads
- High MOT to Eliminate Fade
- Excellent Actuation, Modulation and Release
- Positive Molded for Uniform Friction Material
- Scorched to Raise Initial Cold Effectiveness
- Para-Aramid Composites for Linear Response
- Dyno Proven Performance and Service Life
- Lab-Developed Formulas with Strong Initial Bite
- Ideal for Autocross and Light Track Day Use
EBC Yellowstuff brake pads
- Give your RS4 superior stopping power with EBC Yellowstuff brake pads alongside the J-hook rotors
- Yellowstuff installs as a straight substitution of your stock pads
- The Yellowstuff is a aramid fibre based brake pad and is explicitly formulated for the track and spirited-street driving
- No need to get the pads up to temperature. The EBC Yellowstuff pads bite hard on cold as well as hot rotors
- Manufactured with EBC’s unique Break-In surface coating for quick bedding in
- EBC Yellowstuff brake pads’ center-line slot vents heat and gas to prevent thermal cracks and fade