Porterfield AP592.17 Brake Pads

Porterfield Brakes are race-bred friction designed and proven on the track. Each set is precision-cut from premium friction material and developed for high-temperature durability, fade resistance, and consistent pedal feel.

Available Compound Options for this Fitment:

• R-4 — The original road racing compound that is very rotor friendly and easy to modulate. Medium friction with a 0–1200°F temperature range; optimum 350°F–900°F. Not for street use.
• R4-E — The Endurance compound. Slightly lower friction than the R-4 but designed to wear longer for endurance races (4–6 hour). Characteristics are otherwise much the same as R-4. Not for street use.
• R4-1 — The Vintage compound. Designed for vehicles that struggle to keep heat in the pads. Best when temps are under 600°F and peak temps stay below 1000°F. Also popular as an autocross pad. Not for street use.

Vehicle Fitment

Porterfield AP592.17 brake pad Axle Set of 4 Pieces FRONT

Cross-Reference Part Numbers: AP592, 17, R592, 17, HB194, 665, FCP721

All Porterfield Brakes products carry the manufacturer's standard warranty. Race compounds are not for street use.