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The Mk6 GTI is a beloved hot hatch, known for its balance between performance and everyday usability. However, for enthusiasts looking to push their car to the limits on track days, upgrading the brake system is essential. One of the most effective upgrades is the installation of a 355mm big brake kit. This article explores the benefits, considerations, and installation process of upgrading to a big brake kit for your Mk6 GTI.
Understanding Brake Performance
Braking performance is critical in any performance vehicle, especially during high-speed track sessions. Upgrading the brakes enhances not only stopping power but also consistency and heat management. The Mk6 GTI, while equipped with decent brakes from the factory, can benefit significantly from larger brake components.
Why Upgrade to a 355mm Big Brake Kit?
A 355mm big brake kit provides several advantages over stock brakes, particularly for track use:
- Increased Stopping Power: Larger rotors provide more surface area for the brake pads, resulting in better friction and stopping performance.
- Improved Heat Dissipation: Bigger rotors can absorb and dissipate heat more effectively, reducing brake fade during extended use.
- Better Modulation: Enhanced brake feel allows for more precise control during hard braking.
- Reduced Weight: Many big brake kits are designed to be lighter than stock components, improving overall vehicle dynamics.
Key Components of a 355mm Big Brake Kit
When considering a big brake kit, it’s essential to understand its components:
- Rotors: The heart of the brake system, larger rotors increase braking performance and heat management.
- Calipers: Upgraded calipers provide better clamping force and often come with more pistons for improved performance.
- Brake Pads: High-performance pads are crucial for maximizing the benefits of a big brake kit.
- Brake Lines: Stainless steel lines improve pedal feel and reduce expansion under pressure.
- Mounting Hardware: Essential for secure installation and optimal performance.
Considerations Before Upgrading
Before proceeding with a big brake kit upgrade, consider the following factors:
- Cost: Big brake kits can be expensive, so budget accordingly.
- Compatibility: Ensure the kit is compatible with your Mk6 GTI model and any other modifications.
- Wheel Clearance: Larger calipers and rotors may require new wheels or spacers to fit properly.
- Brake Bias: Upgrading the front brakes may necessitate adjustments to maintain proper brake balance.
- Installation: Consider whether you will install the kit yourself or seek professional help.
Installation Process
Installing a 355mm big brake kit on your Mk6 GTI can be a rewarding project. Here’s a simplified overview of the installation process:
- Gather Tools and Materials: Ensure you have all necessary tools, including jack stands, wrenches, and brake fluid.
- Remove the Wheels: Lift the vehicle and remove the wheels to access the brake components.
- Remove Stock Brakes: Unbolt and remove the factory calipers and rotors.
- Install New Rotors: Mount the new 355mm rotors onto the hub.
- Install Calipers: Attach the new calipers using the provided hardware.
- Connect Brake Lines: Install stainless steel brake lines for enhanced performance.
- Add Brake Pads: Insert high-performance brake pads into the calipers.
- Bleed the Brakes: Ensure there are no air bubbles in the brake lines by bleeding the system.
- Reinstall Wheels: Put the wheels back on and lower the vehicle.
- Test Drive: Conduct a test drive to ensure everything is functioning correctly.
Conclusion
Upgrading to a 355mm big brake kit can significantly enhance the performance of your Mk6 GTI, especially for track days. With improved stopping power, heat management, and overall driving experience, this upgrade is a worthy investment for any serious enthusiast. Ensure you consider all factors and follow the installation process carefully to enjoy the full benefits of your new brakes.