Brembo GT-S Hard Anodized Front Big Brake Kit for Porsche 996 / 997.1 / 986 / 987 | 8002AS Series

This Brembo GT-S Hard Anodized Front Big Brake Kit (8002AS series) is a front axle upgrade for Porsche 996, 997.1, and 986/987 Boxster and Cayman models, replacing the factory braking system with a fixed 6-piston Brembo caliper and 355mm x 32mm two-piece rotor setup. It increases thermal capacity and maintains consistent clamping force under repeated braking, where the factory systems begin to lose effectiveness.

This configuration is typically used on performance-oriented street builds and mixed-use cars where higher speeds and repeated braking cycles expose the limits of the stock setup. The larger rotor mass and 6-piston caliper provide more even pad pressure across the rotor surface, helping maintain stable pedal feel and braking consistency during back-to-back stops. It’s a common upgrade when moving beyond stock braking capability without stepping into full race-oriented systems.

Brembo’s GT-S line uses hard anodized calipers for improved surface durability and heat resistance, paired with the same core engineering found in their OEM and motorsport systems. This kit includes GT 6-piston cast monobloc radial mount calipers loaded with Brembo FM1000 pads for street and performance use. It’s paired with high carbon two-piece rotors—available in Cross Drilled, TY1, or TY3 configurations depending on the selected variant—with corrosion-resistant plating, along with Goodrich braided lines and CNC billet radial mounting hardware.

Add it up—6-piston calipers, 355mm rotors, braided lines, and proper mounting hardware. This is a substantial step up from the factory front system for cars that are driven harder or carry more speed into braking zones.

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Technical Details

• Manufacturer: Brembo
• Series: GT-S
• Part Series: 8002AS
• Position: Front axle
• Application Range: Porsche 996, 997.1, 986/987 Boxster, Cayman
• Calipers: Brembo 6-piston cast monobloc radial mount (hard anodized finish)
• Rotor Size: 355mm x 32mm
• Rotor Type: Two-piece high carbon with corrosion-resistant coating
• Rotor Variants: Cross Drilled, TY1, TY3
• Pads: Brembo FM1000 (street/performance)
• Brake Lines: Goodrich braided lines
• Hardware: CNC billet radial mounting hardware included
• Disc Air Gap: 16mm
• Disc Annulus: 54mm
• Vane Design: Curved 72 vane vented
• Rotor Mounting System: Floating D-bobbin with anti-rattle spring

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Fitment & Compatibility

Fits Porsche 996, 997.1, and 986/987 Boxster and Cayman models (excluding PCCB-equipped cars). This kit replaces the factory front braking system with a Brembo caliper and larger rotor package.

IMPORTANT: Before you purchase a Brembo Performance or Racing Brake system you should always confirm that the vehicle's wheels have adequate clearance, regardless of wheel size. 

Fitment instructions can be found here
Caliper measurements can be found here

These CAD drawings represent the clearance of an Original Equipment (left) brake system compared to a GT system with inadequate clearance (middle), and one with proper clearance (right).