Porsche 911 Big Brake Kit Upgrade / TTSPORT Evolution EB8
The Porsche 911's stock four-piston calipers handle daily driving fine, but push the car harder — track days, mountain roads, repeated hard stops — and the pedal starts to go soft. The owner of this 911 swapped in a TTSPORT Evolution Series EB8 eight-piston big brake kit to fix that: more pistons spread clamping force more evenly across the pad, giving a firmer pedal and more consistent stopping power when the brakes are working hard.
Vehicle & Kit Specs
Here's the hardware breakdown for this build, running on the car's factory 20-inch wheels with no spacers mentioned in the fitment.
| Item | Specification |
|---|---|
| Vehicle | Porsche 911, 20-inch wheels |
| Front caliper | TTSPORT EB8 forged eight-piston caliper |
| Front rotor | TTSPORT 405mm carbon rotor |
| Rear rotor | TTSPORT 380mm oversized carbon rotor |
| Bracket | Custom vehicle-specific caliper bracket |
| Pads / lines | TTSPORT M05+ high-performance pads, TTSPORT stainless steel brake lines |
| Hardware | Brake fluid, mounting bolts, and fasteners |
Below is the official TTSPORT spec sheet for the EB8 caliper used in this front-axle upgrade.
| Brake Caliper | |
|---|---|
| Series | Evolution Series |
| Model / Application | EB8 |
| Axle Position | Front |
| Piston Count | 8-piston |
| Piston Type | Two-piece heat-insulated pistons with dust boots |
| Piston Diameter | 28 mm × 4 / 32 mm × 4 |
| Caliper Dimensions | L 349 mm × W 166 mm × H 98 mm |
| Total Piston Area | 56.8 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 4.95 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 19 in or larger |
| Recommended Rotor Size | Ø380–405 mm × 34 mm |
| Fitment & Installation | |
| Minimum Spoke Clearance (mm) | 107 |
| 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 |
Why It Works
The EB8 is a two-piece forged aluminum caliper with an asymmetric piston layout — 28mm and 32mm bores across eight pistons — so clamping force lands evenly across the pad face instead of concentrating at one edge. That means quicker, less abrupt initial bite and stronger, more linear force as pedal travel increases. The two-piece heat-insulated pistons and high-temp seals are built to run against carbon rotors without losing clamping consistency as things heat up.
- Eight-piston, forged two-piece caliper body resists flex under hard braking, keeping pedal feel firm instead of mushy.
- Larger 405mm front and 380mm rear carbon rotors add mass and surface area, giving the system more heat capacity for repeated hard stops.
- Vehicle-specific bracket and 19-inch-plus wheel clearance mean the kit was designed to run behind this 911's factory 20-inch wheels.
Installation Gallery
Frequently Asked Questions
What Porsche 911 brake upgrade does this case cover?
What's included in the TTSPORT EB8 kit besides the calipers and rotors?
What's the minimum wheel size for the TTSPORT EB8 caliper?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.