BMW M3 G80 Big Brake Kit: Complete Installation Guide & Before/After Results
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Why the BMW M3 G80 Deserves a Brake Upgrade
The G80 M3 is one of the most capable performance sedans ever built. With up to 530 hp and all-wheel drive, it can accelerate to 100 km/h in under 3.5 seconds. Yet the factory brake system, while competent for road use, was not designed for sustained track performance. Under repeated hard braking, OEM rotor temperatures climb rapidly, leading to fade and inconsistent pedal feel.
The ICOOH Solution: IC6 6-Piston Big Brake Kit
Our IC6 kit for the G80 M3 replaces the factory setup with a purpose-engineered system featuring:
- 380mm x 34mm two-piece floating rotors (front) — 50mm larger than OEM
- 6-piston monoblock aluminum calipers — machined from a single billet for maximum rigidity
- High-performance brake pads — compound optimized for both street and track use
- Stainless steel braided brake lines — for consistent pedal feel at all temperatures
Installation Overview
The IC6 kit is designed for direct OEM fitment on the G80 M3 — no modifications to the hub, suspension, or brake lines are required. Professional installation takes approximately 3-4 hours per axle.
Key Installation Steps
- Remove OEM caliper and rotor assembly
- Install ICOOH caliper bracket using supplied hardware
- Mount floating rotor onto hub
- Install caliper and connect braided brake lines
- Bleed brake system and bed in pads
Before & After: Real-World Results
Customer testing on the Nürburgring Nordschleife showed a consistent 12% reduction in braking distance from 200 km/h, with zero fade across 10 consecutive hard stops — a result the OEM system could not replicate.