Toyota Alphard/Vellfire Big Brake Kit Upgrade / TTSPORT Evolution EB6
A Toyota Alphard/Vellfire out of Malaysia got a front-axle brake upgrade with TTSPORT's Evolution Series EB6 kit — a split forged six-piston caliper paired with a 380mm high-carbon heat-treated rotor, installed behind the car's stock 19-inch wheels.
Vehicle & Kit Specs
Here's the hardware breakdown for this build, straight from the install sheet.
| Item | Specification |
|---|---|
| Vehicle | Toyota Alphard/Vellfire, 19-inch wheels |
| Front caliper | TTSPORT EB6 split forged six-piston caliper |
| Front rotor | TTSPORT 380x36mm high-carbon heat-treated rotor |
| Bracket | Custom vehicle-specific caliper bracket |
| Pads / lines | TTSPORT high-performance street pads, TTSPORT stainless steel brake lines |
| Hardware | Brake fluid, mounting bolts, and fasteners |
Below is the full TTSPORT EB6 spec sheet for the caliper 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 |
TTSPORT notes the EB6 is aimed at mid-to-large sedans, SUVs, and MPVs — the Alphard/Vellfire's size and weight fit that use case, and the caliper clears the stock 19-inch wheel without needing spacers or wheel changes.
Why It Works
A stiffer caliper body
The EB6 is built as a two-piece forged caliper rather than a single casting. Forging aligns the aluminum's grain structure for higher strength per gram, and TTSPORT ties the two halves together with thru-bolts instead of a bridge — a design the brand says adds 20-30% more rigidity over a conventional bolted caliper. Less flex under clamping load means less pedal travel is wasted deforming the caliper, so pedal feel gets sharper and more direct.
Asymmetric pistons, less unsprung weight
The six pistons aren't all the same size. Larger pistons sit where clamping force matters most, while the smaller pistons are kept slim once they've met the strength requirement — trimming unsprung mass at the corner without giving up clamping force.
Sealing and heat management
The caliper uses a two-key piston seal design with hardened metal piston end covers, which TTSPORT states improves heat resistance and rigidity by roughly 30% versus a standard seal setup — relevant on a heavier vehicle where repeated braking generates more heat at the caliper.
- Two-piece forged body with thru-bolts for added rigidity
- Asymmetric six-piston layout balances clamping force and weight
- 380x36mm high-carbon heat-treated rotor sized for the caliper
- Rotor size selectable at 380/390/410mm depending on wheel clearance
Installation Gallery
What vehicle does this TTSPORT EB6 install fit?
What's included in the Alphard/Vellfire EB6 front kit?
What makes the EB6 caliper's two-piece forged design different from a one-piece caliper?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.