The Boxster and Boxster S have a braking system with four-piston aluminium monobloc brake calipers fitted front and rear. Offering excellent rigidity, they are compact and save on weight. Their superior responsiveness, for fast and sensitive braking, sets them apart.

A brake booster reduces pedal effort whilst maintaining powerful braking. A special ventilation system, whereby the entire wheel brake is cooled through openings in the front end and special channelling systems, increases the stability of the brakes during heavy use.

For the Boxster models, the braking system has been modified for the increased engine power. Like the Boxster S, the Boxster has internally vented brake discs at the front with a diameter of 318 mm. At the rear they measure 299 mm on both models. For reduced weight, better cooling and optimum braking in the wet, the brake discs are cross-drilled.

The brake pads have also been optimised for improved braking performance. The rear brake discs on the Boxster S are 4 mm thicker than those on the Boxster, which increases stability even further. To distinguish them visually, the brake calipers on the Boxster have a black anodised finish while those on the Boxster S are painted red.