Audi A5 Big Brake Kit Upgrade / TTSPORT Evolution EB6
The Audi A5 has built its reputation on a fastback silhouette and precise handling since the B8 launched in 2007, carrying that formula into the current B9. What it hasn't always had is a brake pedal that matches the chassis — stock A5 brakes tend to feel soft off the top and lose bite once things get hot, which blunts an otherwise sharp car. This case documents an A5 owner's front-axle upgrade to a TTSPORT Evolution Series EB6 kit, installed behind the factory 19-inch wheels.
A soft-feeling stock pedal usually comes down to two things: a flexing caliper body and a rotor that can't shed heat fast enough once you're pushing the car. The fix here targets both — a rigid forged six-piston caliper and a larger front rotor sized for the A5's 19-inch wheel package.
Vehicle & Kit Specs
| Item | Specification |
|---|---|
| Vehicle | Audi A5, 19-inch factory wheels |
| Front caliper | TTSPORT EB6 six-piston forged caliper |
| Front rotor | TTSPORT 380mm high-carbon rotor |
| Bracket | Vehicle-specific custom caliper bracket |
| Pads / lines | TTSPORT high-performance pads, stainless steel brake lines |
| Hardware | Brake fluid, mounting bolts, and fixing hardware |
Below is the official TTSPORT EB6 caliper spec sheet for the unit used in this build.
| Brake Caliper | |
|---|---|
| Series | Evolution Series |
| Model / Application | EB6 |
| Axle Position | Front |
| Piston Count | 6-piston |
| Piston Type | Two-piece heat-insulated pistons with dust boots |
| Piston Diameter | 30 mm × 2 / 34 mm × 2 / 38 mm × 2 |
| Caliper Dimensions | L 335 mm × W 160 mm × H 102 mm |
| Total Piston Area | 55.0 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 4.6 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 19 in or larger |
| Recommended Rotor Size | Ø380–410 mm × 36 mm |
| Fitment & Installation | |
| Minimum Spoke Clearance (mm) | 103 |
| Caliper Mounting Type | Radial mount with vehicle-specific caliper brackets |
| Brake Line Fitting Type | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
The EB6 is built as a two-piece forged aluminum caliper with an asymmetric, deliberately hollowed body — a design meant to cut weight without sacrificing even pressure distribution across all six pistons. Through-going reinforcing ribs tie the halves together, which TTSPORT states adds 20-30% more rigidity than a conventional caliper casting of similar size.
Installation Gallery
Why It Works
- A forged, ribbed caliper body flexes less under pedal load than a stock cast unit, so pedal travel translates more directly into clamping force instead of getting absorbed by the caliper itself.
- Two-piece heat-insulated pistons with high-temperature seals and dust boots keep clamping pressure consistent as brake temperatures climb, which is where stock setups typically start to fade.
- The larger 380mm front rotor gives the pad more swept surface and more mass to absorb heat, which helps hold performance over repeated hard stops.
- The kit is sized and bracketed to clear the A5's factory 19-inch wheels, so this build didn't require spacers or a wheel change.
FAQ
What wheel size does the TTSPORT EB6 kit fit on the Audi A5?
What does the TTSPORT EB6 front kit include for the Audi A5?
How does the EB6 caliper design improve on the stock Audi A5 setup?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.