This Porterfield brake pad set covers Porsche Boxster S (2015) for front and rear brake service with selectable compound options where variants are available. Porterfield parts are commonly used across performance vehicle platforms and are designed to support braking performance, fitment, and serviceability.
Compound options include R4-S for performance street and autocross use, R-4 for race-focused temperature ranges, R4-E for longer high-temperature endurance use, and R4-1 where that compound is preferred for the application. Porterfield-branded components are intended as direct-fit brake components for Porsche applications when matched to the correct position, compound, and brake package.
Technical Details
- Manufacturer part number: AP1389, AP1134
- Type: Performance street / racing brake pad set
- Compound: R4-S, R-4, R4-E, R4-1
- Position: Front/Rear
Fitment & Compatibility
Match the part number, selected compound, and listed position to your Porsche before installation. PMB Performance can help confirm fitment details using your VIN, caliper type, and rotor configuration.
With more than 20 years working on Porsche brake systems, PMB Performance can help confirm whether this Porterfield part matches your application and driving use.