If you're serious about your ride, let me tell you about Brembo's GT Systems. These aren't just your run-of-the-mill brake kits; they're built for those who really push their cars—whether you're hitting the daily grind or tearing up the track. I've had my fair share of experiences with various brake systems, and I can say that Brembo sets a high bar when it comes to performance.

At the heart of these GT Systems are the aluminum calipers, crafted from a single piece of cast aluminum. This monoblock construction means they’re tough as nails, reducing any flex when you're slamming on the brakes hard. You want consistent performance, right? Well, these calipers deliver that, ensuring you get the stopping power you crave without any drama.

The kit comes with discs that you can choose between floating or one-piece configurations, depending on what your car needs. What’s really cool is the venting system built into the discs. This feature boosts cooling efficiency and cuts down the risk of thermal shock-related cracking by a whopping 40%. Plus, the cross-drilled and slotted designs aren't just for show—they help with heat dissipation and keep brake dust and gases in check, so you can count on reliable braking no matter the conditions.

You'll also find high-performance brake pads in the kit, made with specific friction materials tailored for different driving styles. And let’s not forget the TUV/DOT homologated metal-braided hoses that add an extra layer of durability. This setup comes with an adapter and solid fastener hardware, making it a seamless upgrade that feels like it was meant to be part of your car from day one.

Brembo’s GT Systems are all about unlocking your car's full potential. With cutting-edge tech and solid engineering, they redefine what you can expect from your braking experience. Whether you're on the track or just enjoying a spirited drive, these brakes have your back.

Key Features:

• Enhanced Stopping Power: The larger rotors and multi-piston calipers really cut down your stopping distances.
• Improved Heat Dissipation: Advanced cooling tech keeps brake fade at bay, even during intense sessions.
• Superior Build Quality: Made from high-grade materials that resist wear and tear.
• Enhanced Aesthetics: They look as good as they perform, with stylish designs and custom colors to match your vibe.
• Better Modulation and Feel: You get precise feedback from the brake pedal, boosting your control and confidence behind the wheel.

• Color: Yellow
• Type: Slotted
• Axle: Rear
• Category: GT
• Caliper Pistons: 4-Piston
• Caliper Body: Cast Monobloc
• Disc Diameter: 380mm
• Disc Thickness: 28mm
• Disc Material: Iron
• Disc Type: 2-Piece

• Audi S4 (B8) 2009-2016
• Audi S5 (B8) 2008-2017

• Not for road use. This system eliminates the parking/emergency brake function.

In short, if you own an Audi S4 (2009-2016) or S5 (2008-2021), and you're looking to elevate your braking performance, the Brembo Slotted Rear GT Big Brake Kit is a solid choice. It's all about getting that edge, whether you're on the track or just enjoying a drive.