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Porterfield Racing Brake Pads — Race Proven Performance
Porterfield AP1656
Image of what an axle set is. 2 pads per wheel, 2 wheels equal axle set

Porterfield

Porterfield AP1656 Brake Pads

SKU: SKU: AP1656 R-4

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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.
  • R4-S — The performance street pad. Lowest dust and squeal of any street pad in the Porterfield line, very rotor friendly, and lasts as long as (or slightly longer than) stock pads. Not for track use. Not for use with CCM discs.

Vehicle Fitment

Porterfield AP1656 brake pad Axle set of 4 pieces REAR

Make Vehicle Applications
BMW 14-16 228i M Sport Brakes, 2015 228i xDrive M Sport Brakes, 17-21 230i & xDrive M Sport Brakes, 14-18 328D xDrive Sedan & Wagon M Sport Brakes, 14-16 328i RWD M Sport Brakes, 13-14 328i xDrive & 328xi Sedan M Sport brakes, 17-18 330i xDrive Sedan M Sport Brakes, 14-15 335i M Sport Brakes, 13-15 335i xDrive Sedan M Sport Brakes, 16-18 340i M Sport Brakes, 16-17 340i xDrive M Sport Brakes, 14-16 428i Coup & Conv M Sport Brakes, 15-16 428i Gran Coupe M Sport Brakes, 14-16 428i xDrive Coupe & Conv M Sport Brakes, 17-20 430i & xDrive M Sport Brakes, 14-16 435i & Gran Coupe & xDrive M Sport Brakes, 15-16 435i xDrive Gran Coupe M Sport Brakes, 17-20 440i all w/M Sport Brakes, 13-15 Active Hybrid 3, 16-18 M2, 14-16 M235i & xDrive, 17-21 M240i Coupe & Conv & xDrive, 15-18 M3, 15-20 M4 w/Iron Disc **FULL RACE COMPOUNDS ARE MADE TO ORDER LEAD TIME IS 3-5 BUSINESS DAYS*** D1656, AP1656, R1656.13, PFC 1656, Pagid 4933, HB766.624, FCP4663

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

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