Complete TTSPORT 8657S front wheel big brake kit, showing the 6-piston forged calipers, slotted 2-piece floating rotor, performance pads, and steel-braided brake lines.
Close-up of a red TTSPORT 8657S 6-piston forged brake caliper for the front wheel and a slotted 2-piece floating rotor.
Detailed view of the 6 pistons with dust boot inside a TTSPORT 8657S forged brake caliper.
A red TTSPORT 8657S 6-piston big brake kit is installed on the 17" front wheel.
Unboxing the complete TTSPORT 8657S performance big brake kit, including all components: calipers, rotors, pads, brake line, and mounting hardware.
Customization options for the TTSPORT 8657S brake kit, featuring available caliper colors (red, blue, green, orange), rotor designs (drilled and slotted), rotor materials (steel and carbon ceramic).
Complete TTSPORT 8657S front wheel big brake kit, showing the 6-piston forged calipers, slotted 2-piece floating rotor, performance pads, and steel-braided brake lines.
Close-up of a red TTSPORT 8657S 6-piston forged brake caliper for the front wheel and a slotted 2-piece floating rotor.
Detailed view of the 6 pistons with dust boot inside a TTSPORT 8657S forged brake caliper.
A red TTSPORT 8657S 6-piston big brake kit is installed on the 17" front wheel.
Unboxing the complete TTSPORT 8657S performance big brake kit, including all components: calipers, rotors, pads, brake line, and mounting hardware.
Customization options for the TTSPORT 8657S brake kit, featuring available caliper colors (red, blue, green, orange), rotor designs (drilled and slotted), rotor materials (steel and carbon ceramic).

Classic Series 8657S Front Wheel 6-Pistons Brake Kit

$1,410.00 USD
$1,410.00 USD

Shipping costs not included

Caliper Color: Standard Color (As Shown in the Image)
Rotor Size: 355x32mm (Wheel ≥ 18″)
Rotor Material & Design: Steel - Curved Slotted
Complete TTSPORT 8657S front wheel big brake kit, showing the 6-piston forged calipers, slotted 2-piece floating rotor, performance pads, and steel-braided brake lines.

Classic Series 8657S Front Wheel 6-Pistons Brake Kit

$1,410.00
Complete TTSPORT 8657S front wheel big brake kit, showing the 6-piston forged calipers, slotted 2-piece floating rotor, performance pads, and steel-braided brake lines.
Close-up of a red TTSPORT 8657S 6-piston forged brake caliper for the front wheel and a slotted 2-piece floating rotor.
Detailed view of the 6 pistons with dust boot inside a TTSPORT 8657S forged brake caliper.
A red TTSPORT 8657S 6-piston big brake kit is installed on the 17" front wheel.
Unboxing the complete TTSPORT 8657S performance big brake kit, including all components: calipers, rotors, pads, brake line, and mounting hardware.
Customization options for the TTSPORT 8657S brake kit, featuring available caliper colors (red, blue, green, orange), rotor designs (drilled and slotted), rotor materials (steel and carbon ceramic).

Classic Series 8657S Front Wheel 6-Pistons Brake Kit

$1,410.00
Caliper Color: Standard Color (As Shown in the Image)
Rotor Size: 355x32mm (Wheel ≥ 18″)
Rotor Material & Design: Steel - Curved Slotted
Specifications

The Ideal Performance Upgrade: 8657S Forged 6-Piston Caliper

Ready to feel a real difference in your braking? The 8657S is the perfect first step into the world of high-performance big brakes. We forged this 6-piston caliper from high-strength, lightweight aluminum and used a hollowed-out design to slash unsprung weight, sharpening your car's handling and steering response.

The progressive piston arrangement delivers powerful braking with a smooth, linear pedal feel that’s easy to control. We built it tough with track-ready components like ventilated pistons and high-temp seals to ensure consistent, fade-free stopping power when you need it most. It's the ideal, high-value upgrade for performance sedans, SUVs, and crossovers.

Technical Specifications

Caliper
Series Classic Series
Model 8657S
Mounting Position Front
Number of Pistons 6
Piston Type Two-Piece Vented Pistons with Dust Boots
Piston Diameter 30 mm × 2, 34 mm × 2, 38 mm × 2
Dimensions L 350 × W 165 × H 92.64 mm
Total Piston Area 54.95 cm²
Manufacturing Process Two-Piece Forged
Net Weight 4.05 kg (single caliper without pad)
Surface Finish High-Temperature Gloss Coating
Recommended Wheel Size 18″ or larger
Recommended Rotor Size ⌀355–405 mm / Thickness 32–34 mm
Brake Rotor
Material Heat-Treated High Carbon Steel Carbon-Ceramic Composite
Dimensions ⌀355×32, ⌀380/405×34 mm ⌀355×32, ⌀380/405×34 mm
Construction 2-Piece Rotor 2-Piece Rotor
Vented / Solid Vented Vented
Floating / Fixed Floating Floating
Directional Yes Yes
Design Options Curved Slotted / GrainSlot / WaveSlot / Drilled & Slotted Cross Drilled
Brake Pad
Compatible Rotor Material Steel Rotors Carbon-Ceramic Rotors
Operating Temperature 0–550°C 0–700°C
Coefficient of Friction 0.40–0.46 μ 0.46 μ ± 0.15
Brake Hose
Construction 3-Layer Reinforced
Material Inner: PTFE (Teflon); Middle: SUS304 Braided Stainless Steel; Outer: PVC Sheath
Mounting Hardware
Rotor Hat CNC-Machined Aerospace-Grade Aluminum Alloy
Caliper Bracket CNC-Machined Carbon Steel

3-Step Pre-Fitment Check

Step 1: Illustration showing 8657S big brake kit requires 18-inch or larger wheels.
Step 1: Verify Wheel Size (18" Minimum)
Step 2: Diagram showing how to measure caliper to wheel spoke clearance, minimum 107mm required for 8657S kit.
Step 2: Check Spoke Clearance (Min. 107 mm)
Step 3: Icon representing checking your vehicle's compatibility from a verified list.
Step 3: Confirm Your Vehicle Model Below

Vehicle Compatibility

Don't See Your Model? Our application list is constantly expanding. If your vehicle isn't on the list, just reach out! Provide your year, make, model, and wheel specs, and our team will confirm fitment options for you.

Frequently Asked Questions

What's the main benefit of the 8657S?
The 8657S delivers a massive improvement in stopping power and heat resistance over your factory brakes, all at a great value. Its lightweight, forged, and hollowed-out design provides a noticeable upgrade in both braking confidence and handling response, making it the perfect entry into the world of big brake kits.
How is the 8657S different from the flagship EMB6 caliper?
Both are premium 6-piston calipers. The main difference is how they're made. The 8657S uses a strong and reliable **two-piece forged** construction. The EMB6 is a **monoblock forged** caliper, meaning it's machined from a single piece of aluminum. This makes the EMB6 lighter and more rigid, representing the absolute pinnacle of our performance line.
What's included in the complete 8657S brake kit?
This is a complete, bolt-on front axle upgrade. The kit includes:
  • 2 × 8657S Forged 6-Piston Calipers
  • 2 × Two-Piece Floating Brake Rotors
  • 1 × Set of Performance Brake Pads
  • 2 × CNC-Machined Caliper Mounting Brackets
  • 2 × Stainless Steel Braided Brake Hoses
Notice

Brake Kit Purchase Notice


  • Custom‑made products cannot be returned unless there is a genuine quality defect.
  • Spacer requirements vary depending on wheel design; we assist with fitment, but spacer‑related issues do not qualify for returns.

1. Disclaimer

  1. Please provide vehicle make, model year, VIN, and wheel size before ordering TTSPORT products.
  2. Confirm wheel measurements and submit photos as requested — TTSPORT is not liable for issues arising from incorrect specs.
  3. All products are inspected before shipping. Inspect upon delivery and report quality issues within 24 hours.

2. Initial Break‑In Procedure

  1. In a safe area, brake from 60 km/h to 10 km/h with moderate pressure—repeat 10 times.
  2. Drive 500–1,000 km with light to moderate usage before full braking performance. Avoid aggressive stops.
  3. Our high‑carbon steel discs have grooved, color‑treated surfaces to help quick bedding and resist corrosion.

3. Product Warranty

  • Calipers: 1‑year warranty on defects. Lifetime maintenance available (parts charged).
  • Discs & Hoses: 90‑day warranty for defects. Expected lifespan: 40,000–60,000 km.
  • Brake Pads: 90‑day coverage. Typical lifespan: 20,000–40,000 km.
  • Custom Hats/Brackets: Fit guaranteed; no warranty post-installation.

4. Usage & Maintenance

  1. Do not wash immediately after hard braking to prevent rotor warpage.
  2. Allow extra stopping distance when driving in wet conditions.
  3. If you experience unusual noise or vibration, consult your installer immediately.

Recommended service intervals:

  • Replace rotors when wear exceeds 3 mm.
  • Front pads: every 30,000 km.
  • Rear pads: every 50,000–60,000 km.
  • Brake fluid: every 40,000 km or every 2 years.

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