2022-2026+ Denza D9 EV CCB Big Brake Kit | TTSPORT SL6 6-Piston
Official Warranty: 1‑year free replacement for quality defects or coating issues under normal (non-track) use.
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2022-2026+ Denza D9 EV / DM-i CCB Big Brake Kit — TTSPORT SL6 6-Piston Caliper Front + TTSPORT EP4 4-Piston Caliper with EPB Rear Setup
The Denza D9 EV / DM-i is a heavy three-row luxury MPV, so the brake upgrade case is heat control, lower dust, and repeatable pedal behavior rather than short-burst track use. This StopFlex kit pairs a TTSPORT SL6 6-Piston Caliper with a 355mm front carbon-ceramic rotor and a TTSPORT EP4 4-Piston Caliper with EPB on a 380mm rear rotor. The package is built around the customer’s exact D9 trim so the brackets, rotor-hat offsets, caliper position, and brake lines are matched to the vehicle instead of treated as a generic platform fit.
- 355mm is the largest rotor in this kit, so 19-inch wheels are the minimum; wheels under 19 inches will not clear the front package, and spoke clearance still must be checked.
- The rear package uses a TTSPORT EP4 4-Piston Caliper with EPB on a 380mm carbon-ceramic rotor so the D9 keeps electronic parking-brake functionality while adding rear thermal capacity.
- The D9 EV / DM-i’s MPV mass and passenger-duty use make carbon-ceramic rotors useful for reducing brake dust on large wheels and maintaining stable brake response during repeated highway deceleration.
Fitment Hard Lines
| Field | Specification |
|---|---|
| Vehicle | Denza D9 EV / DM-i |
| Model years | 2022-2026+ |
| Front setup | TTSPORT SL6 6-Piston Caliper / 355mm |
| Rear setup | TTSPORT EP4 4-Piston Caliper with EPB / 380mm |
| Page type | Complete CCB kit upgrade |
| Minimum wheel size | 19" (for the 380 mm front rotor) |
Every StopFlex kit is bespoke-engineered for your exact model and trim — the brackets, rotor-hat offsets, and caliper mounting are matched to your specific car, not assumed from the platform. This matters because trims that share a chassis name can differ mechanically: a pure M or performance variant often carries different front knuckles/uprights, hub geometry, and wheel axial (ET) clearance than the standard models in the same family, so a bracket and hat offset that bolt onto one are not the same parts that fit the other. StopFlex supplies the calipers, pads, rotor hats, floating hardware, and brake lines as a matched system built to your confirmed trim. Cars with modified knuckles, modified uprights, or non-factory suspension mounting points must be reviewed before ordering and are not treated as direct-fit.
This setup uses a 380 mm front rotor, so the minimum wheel size is 19". Wheels under 19" will not clear the caliper and rotor, and spoke profile and offset affect clearance too — confirm your exact wheels before ordering.
| Wheel Size (Standard) | Disc Range |
|---|---|
| 15" | 260 mm – 285 mm |
| 16" | 285 mm – 300 mm |
| 17" | 300 mm – 330 mm |
| 18" | 330 mm – 355 mm |
| 19" | 355 mm – 380 mm |
| 20" | 380 mm – 400 mm |
| 21" | 400 mm – 420 mm |
| 22" | 420 mm – 440 mm |
Caliper Overview — Front & Rear Balance
Front Caliper (Primary Upgrade)
The TTSPORT SL6 6-Piston Caliper is the primary front upgrade in this Denza D9 kit, using six pistons to distribute clamping load across the front pad for firmer pedal response and more even pressure on the 355mm carbon-ceramic rotor. TTSPORT is a dedicated performance brake brand, and the SL6 is specified here as a purpose-built big-brake caliper rather than a repainted factory housing. StopFlex matches the caliper bracket and rotor-hat offset to the confirmed D9 EV or DM-i trim before production.
Rear Caliper (Balance)
The TTSPORT EP4 4-Piston Caliper with EPB adds real rear-axle braking capacity while preserving the electronic parking brake. Its four hydraulic service pistons handle braking force, while the dedicated EPB actuator keeps factory parking-brake convenience active on the D9.
Front & rear, engineered together: This kit is engineered as a front-and-rear system so the 355mm SL6 front package and 380mm EP4 EPB rear package work as a matched brake-bias setup. That matters on a tall, heavy MPV because an oversized front-only conversion can reduce rear contribution and make the car feel less settled under repeated braking.
Make It Yours — Color & Logo Customization
Every StopFlex kit-upgrade order can be finished with custom caliper colors, a custom caliper logo, and custom rotor hat colors, so the brake package matches your exact build instead of a fixed off-the-shelf look.
- Custom caliper color
- Custom caliper logo
- Custom rotor hat color
Why StopFlex CCB
Lower Unsprung Mass
StopFlex carbon-ceramic rotors are engineered to reduce rotor mass versus comparable iron discs, helping the suspension react cleaner and the steering feel more precise.
High-Temperature Stability
The carbon-silicon-carbide matrix is built for stable braking behavior at temperatures that can push iron rotors into heavy fade.
Rust-Free Rotor Surface
Carbon ceramic does not form orange flash rust after rain, washing, or storage, keeping the visible rotor face cleaner behind open wheels.
Long Street-Service Potential
In normal road use with matched pads and proper bedding, StopFlex CCB rotors are designed for far longer service life than typical iron replacement rotors.
Low Visible Dust
When paired with matched StopFlex pads, the system produces very low visible brake dust compared with conventional iron rotor and pad combinations.
Premium Ceramic-Glaze Appearance
StopFlex's proprietary coating creates a bright, high-end ceramic-glaze finish with subtle glaze texture and a more premium visual character behind open wheels.
Street-Usable Cold Bite
Street Spec and Track-Day Spec rotors are designed for normal first-stop road use, including cold-weather operation. Motorsport Spec is the competition-focused exception.
Continuous Fiber Reinforcement
Long-fiber carbon ceramic construction improves structural strength and thermal durability versus chopped-fiber approaches.
Heat Management Note
Carbon ceramic rotors tolerate extreme surface temperature, but they do not remove every heat-management requirement. During repeated hard stops, heat can still soak into pads, fluid, seals, calipers, wheels, and nearby components. For long track sessions, mountain descents, or sustained aggressive driving, brake cooling and high-temperature fluid are still recommended.
Street / Track-Day / Motorsport Rotor Options
Street Spec
Ceramic coating, cross-drilled face, and large cooling channels.
Best for daily driving and premium street builds that need clean cold bite, low dust, corrosion-free appearance, and long service life.
Track-Day Spec
Ceramic coating, blank face, and honeycomb cooling channels.
Best for fast-road and track-day use where repeated braking stability matters more than maximum visual drilling style.
Motorsport Spec
Uncoated blank face with honeycomb cooling channels.
Best for race-focused builds that run competition pads, high-temperature fluid, cooling strategy, and a proper warm-up window. Not the default street choice.
Package Scope
| Item | Details |
|---|---|
| Front calipers | TTSPORT SL6 6-Piston Caliper |
| Front CCB rotors | 355mm |
| Rear calipers | TTSPORT EP4 4-Piston Caliper with EPB |
| Rear CCB rotors | 380mm |
| CCB brake pads | Matched for the supplied StopFlex carbon ceramic rotors |
| Rotor hats and floating hardware | Vehicle-specific hardware package |
| Brake lines | Included for complete kit-upgrade orders |
| Color customization | Custom caliper colors, a custom caliper logo, and custom rotor hat colors are available for every kit-upgrade order. |
| Order scope | Default listing is full-car set when front and rear are specified. Front-only or rear-only orders can be arranged after confirmation. |
EPB & Rear Caliper Options
This vehicle leaves the factory with an electronic parking brake (EPB) built into the rear brake, so the rear of the kit is built to keep that EPB working. There are two rear paths. The first is a dual-caliper rear: a main performance caliper handles braking while a dedicated EPB actuator caliper is retained alongside it, so the electronic parking brake, auto-hold, and hill-start assist all keep working; on this path the rear performance caliper can be the TTSPORT EP4 / EP4S 4-piston caliper. The second is an EPB-integrated caliper, a single rear caliper with the electromechanical parking-brake motor built in for a cleaner install with fewer parts behind the wheel; on this path the rear is the TTSPORT EP4 / EP4S 4-piston caliper with integrated EPB. Which path fits best depends on your exact trim and EPB configuration, your budget, your appearance preference, and your wheel size and spoke clearance. Confirm your car's rear-brake configuration with StopFlex before ordering so the correct EPB-compatible rear option is built for your kit.
| Rear option | What it is | Rear caliper | Best when |
|---|---|---|---|
| Dual caliper (EPB retained) | Performance caliper plus a dedicated EPB actuator caliper, both fitted on the rear, so the factory electronic parking brake keeps working. | TTSPORT EP4 / EP4S 4-Piston Caliper | You want guaranteed factory EPB, auto-hold, and hill-start behavior preserved. |
| EPB-integrated caliper | A single rear caliper with the electromechanical parking-brake motor built in, for a cleaner install with fewer parts behind the wheel. | TTSPORT EP4 / EP4S 4-Piston Caliper with integrated EPB | You want a cleaner single-caliper rear with full EPB function. |
TTSPORT EP4S rear caliper specification (the EP4 shares the same engineering, slightly more compact):
| Specification | EP4S |
|---|---|
| Axle position | Rear |
| Piston count | 4 hydraulic + 1 EPB actuator |
| Piston type | Two-piece heat-insulated, dust boots + EPB actuator |
| Piston diameter | 28 mm × 4 / 27 mm × 1 |
| Total piston area | 30.4 cm² per caliper |
| Manufacturing process | Two-piece forged aluminum body |
| Net weight | 4.50 kg per caliper (no pads) |
| Surface finish | High-temperature gloss coating |
| Recommended wheel size | 18 in or larger |
FAQ
Will this kit fit my exact Denza D9 EV or DM-i trim?
Fitment is confirmed per vehicle, not by chassis name alone. StopFlex verifies the D9 EV or DM-i trim, hub data, brake mounting points, wheel size, wheel offset, and spoke clearance before finalizing brackets, rotor hats, lines, and caliper position.
What wheel size is required for the 355mm front rotor?
The largest rotor in this kit is 355mm, so 19-inch wheels are the minimum. Wheels smaller than 19 inches will not clear, and some 19-inch wheels may still need a spoke-clearance check because the TTSPORT SL6 6-Piston Caliper is wider than the factory caliper.
Will the electronic parking brake still work?
Yes. The rear axle uses the TTSPORT EP4 4-Piston Caliper with EPB, which uses hydraulic service pistons for braking and a dedicated EPB actuator for parking-brake function, so the D9 keeps electronic parking-brake operation when the kit is specified correctly.
Why use carbon-ceramic rotors on a Denza D9 MPV?
Carbon-ceramic rotors reduce brake dust, resist heat fade during repeated deceleration, and cut rotating unsprung mass compared with conventional iron rotors of similar size. On the D9 EV / DM-i, those benefits suit a heavy passenger vehicle that needs clean wheels, stable pedal feel, and quiet daily braking.
Need Fitment Confirmation?
Send the exact vehicle details, current rotor sizes, and caliper type before ordering.
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