R4-S brake pad set for the 2017 Porsche 718 Boxster S. This set covers both the front and rear axle positions, so it is a fitment-sensitive choice keyed to the 2017 car and the exact brake hardware it left the factory with.
R4-S is Porterfield's street-focused performance compound: more bite and better heat tolerance than a basic replacement pad, while staying civil enough for daily road use. It is a common pick for a 718 Boxster S owner who wants sharper braking without moving to a full track pad.
Technical Details
- Manufacturer part number: AP1905, AP1134
- Compound: R4-S
- Position: Front/Rear
- Model year: 2017
Porsche pad fitment shifts with rotor material, caliper setup, and year, so match this set against the 2017 718 Boxster S application and the notes below before ordering. Unsure what is on the car? Send PMB Performance your VIN or brake details and we will confirm it.