Brembo Gran Turismo Front Big Brake Kit for Porsche 930 (1978–1979) | 8023A Series

This Brembo Gran Turismo Front Big Brake Kit (8023A series) upgrades the front braking system on Porsche 930 (1978–1979) with a fixed 4-piston Brembo caliper and 355mm x 32mm two-piece rotor setup. It replaces the factory components with a system that maintains consistent clamping force and improves heat control during repeated braking, where the original 930 brakes tend to fall off.

This configuration is typically used on street-driven or performance-oriented 930 builds where the factory system starts to show fade during repeated use. The larger rotor and stiffer caliper help keep pad contact even and pedal response stable during back-to-back stops. It’s a common upgrade when refreshing worn factory brakes or improving confidence under harder driving without stepping into a more aggressive high-capacity setup.

When it comes to bigger brakes, Brembo is the name most people end up at for a reason. This kit includes a pair of GT 4-piston cast monobloc radial mount calipers loaded with Brembo FM1000 pads set up for street and performance use. It’s paired with high carbon 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—4-piston calipers, two-piece rotors, braided lines, and the mounting hardware to tie it all together. This is a straightforward upgrade for improving braking consistency without stepping into larger multi-piston high-capacity systems.

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Technical Details

• Manufacturer: Brembo
• Series: Gran Turismo
• Part Series: 8023A
• Position: Front axle
• Application Range: Porsche 930 (1978–1979)
• Calipers: Brembo 4-piston cast monobloc radial mount
• 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

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Fitment & Compatibility

Designed for Porsche 930 models from 1978–1979. 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).