Complete TTSPORT 5440 front wheel big brake kit, showing the 4-piston forged calipers, slotted 2-piece floating rotor, performance pads, and steel-braided brake lines.
Close-up of a red TTSPORT 5440 4-piston forged brake caliper for the front wheel and a slotted 2-piece floating rotor.
Detailed view of the 4 racing pistons inside a TTSPORT 5440 forged brake caliper.
A red TTSPORT 5440 4-piston big brake kit is installed on the 15" front wheel.
Unboxing the complete TTSPORT 5440 performance big brake kit, including all components: calipers, rotors, pads, brake line, and mounting hardware.
Customization options for the TTSPORT 5440 brake kit, featuring available caliper colors (red, blue, green, orange), rotor designs (drilled and slotted).
Complete TTSPORT 5440 front wheel big brake kit, showing the 4-piston forged calipers, slotted 2-piece floating rotor, performance pads, and steel-braided brake lines.
Close-up of a red TTSPORT 5440 4-piston forged brake caliper for the front wheel and a slotted 2-piece floating rotor.
Detailed view of the 4 racing pistons inside a TTSPORT 5440 forged brake caliper.
A red TTSPORT 5440 4-piston big brake kit is installed on the 15" front wheel.
Unboxing the complete TTSPORT 5440 performance big brake kit, including all components: calipers, rotors, pads, brake line, and mounting hardware.
Customization options for the TTSPORT 5440 brake kit, featuring available caliper colors (red, blue, green, orange), rotor designs (drilled and slotted).

Classic 5440 Front Wheel 4-Piston Brake Kit

$1,060.00 USD
$1,060.00 USD
(-0%)
Caliper Color: Standard Color (As Shown in the Image)
Rotor Size: 330x28mm (Wheel ≥ 17″)
Rotor Material & Design: Steel - Curved Slotted
Subtotal: $1,060.00
Complete TTSPORT 5440 front wheel big brake kit, showing the 4-piston forged calipers, slotted 2-piece floating rotor, performance pads, and steel-braided brake lines.

Classic 5440 Front Wheel 4-Piston Brake Kit

$1,060.00
Complete TTSPORT 5440 front wheel big brake kit, showing the 4-piston forged calipers, slotted 2-piece floating rotor, performance pads, and steel-braided brake lines.
Close-up of a red TTSPORT 5440 4-piston forged brake caliper for the front wheel and a slotted 2-piece floating rotor.
Detailed view of the 4 racing pistons inside a TTSPORT 5440 forged brake caliper.
A red TTSPORT 5440 4-piston big brake kit is installed on the 15" front wheel.
Unboxing the complete TTSPORT 5440 performance big brake kit, including all components: calipers, rotors, pads, brake line, and mounting hardware.
Customization options for the TTSPORT 5440 brake kit, featuring available caliper colors (red, blue, green, orange), rotor designs (drilled and slotted).

Classic 5440 Front Wheel 4-Piston Brake Kit

$1,060.00
Caliper Color: Standard Color (As Shown in the Image)
Rotor Size: 330x28mm (Wheel ≥ 17″)
Rotor Material & Design: Steel - Curved Slotted
Product Detail
Product Detail
x

The Track Day Weapon: 5440 Forged 4-Piston Caliper Kit

Engineered for the track, refined for the street. The 5440 large four-piston caliper delivers an exceptionally firm and responsive pedal feel for drivers who demand instant feedback and superior thermal capacity. Its symmetrical, forged construction is scientifically lightened to provide an optimal balance of high strength and low unsprung weight.

For maximum thermal performance, the 5440 comes equipped with race-spec castellated pistons. This design minimizes contact with the brake pad, significantly reducing heat transfer to the brake fluid. Paired with ultra-high-temperature seals and no dust boots, this caliper offers incredible resistance to brake fade and ensures a stable, powerful bite under the most demanding conditions. It is a premier high-performance upgrade for dedicated track day cars and aggressively driven street machines.

Technical Specifications & Kit Options

The following data highlights the engineering behind the 5440's track-focused design. Note the race-spec castellated pistons for superior heat rejection and the lightweight construction. This kit is exclusively available with our high-carbon steel rotors and comes standard with our M-01 street performance brake pads.

Caliper Engineering
Series Classic Series
Model 5440
Mounting Position Front Axle
Piston Count 4-Piston, Staggered
Piston Type Race-Spec Castellated (No Dust Boots)
Piston Diameter 38 mm / 41 mm (1.50 in / 1.61 in)
Total Piston Area 49.08 cm² (7.61 in²)
Construction 2-Piece Forged Aluminum Alloy
Net Weight 2.65 kg (5.84 lbs) (Single Caliper, No Pads)
Finish High-Temperature Gloss Coating
Min. Wheel Size 17" Recommended
Required Rotor Size ⌀330–345 mm (13.0–13.6 in) × 28 mm (1.10 in) thick
Rotor Specification
Material High-Carbon Steel
Construction 2-Piece Fixed
Venting Directional Vented
Surface Patterns Curved Slotted / Grainslot / Waveslot / Drilled & Slotted
Brake Pad Compound
Compound Model M-01 Street Performance
Operating Temp Up to 600°C (1112°F)
Friction Coefficient 0.38 μ
Supporting Hardware (Vehicle-Specific)
Brake Hoses 3-Layer Stainless Steel Braided (PTFE Core, SUS304 Braid, PVC Sheath)
Rotor Hat / Bell Custom CNC-Machined 6061-T6 Aerospace-Grade Aluminum
Caliper Bracket Custom CNC-Machined S45C Forged Steel

Will It Fit? Your 3-Step Check

Step 1: A diagram showing a minimum 17-inch wheel requirement for the 5440 caliper.
1. Wheel Diameter

Confirm you are running 17" or larger wheels.

Step 2: Diagram illustrating caliper-to-spoke clearance measurement.
2. Spoke Clearance

Measure from the rotor mounting face to the back of the wheel spokes. You need at least 87 mm (3.43 in) of clearance.

Step 3: An icon representing vehicle model confirmation from a list.
3. Vehicle Model

Please use the vehicle filter or contact us to confirm.

Want a printable fitment template? Contact us with your vehicle's year, make, and model, and we'll email you a 1:1 wheel-clearance template.

Technical FAQ

What are "castellated pistons" and why are they better?
Castellated (or grooved) pistons are a race-proven technology. The cutouts significantly reduce the contact area between the piston and the brake pad's backplate. This drastically lowers heat transfer from the hot pad into your caliper and brake fluid, providing superior resistance to brake fade during intense, repeated use on the track.
Is this caliper suitable for daily street use?
The 5440 is a track-focused caliper. By design, it does not have dust boots in order to use ultra-high-temperature seals that won't melt under extreme heat. While this maximizes track performance, it means the pistons are more exposed to road grime and require more frequent inspection and cleaning to prevent debris buildup if used as a daily driver.
How does the 5440 compare to the 5430 caliper?
Both are high-performance 4-piston calipers. The 5430 is our robust, all-around street performance upgrade, featuring dust boots for enhanced durability in all conditions. The 5440 is its track-oriented sibling, featuring castellated pistons and no dust boots for maximum heat resistance at the expense of requiring more frequent maintenance.
What's in the box? Is this a complete kit?

Yes, this is a comprehensive, vehicle-specific system engineered for a complete bolt-on installation. Each 5440 kit includes:

  • 2x 5440 Forged 4-Piston Calipers
  • 2x 2-Piece High-Carbon Steel Rotors
  • 1x Set of M-01 Street Performance Brake Pads
  • 2x Stainless Steel Braided Brake Hoses
  • 2x Bespoke CNC-Machined Rotor Hats
  • 2x Bespoke CNC-Machined Caliper Brackets

See The 5440 In Action

Check out how other enthusiasts are running our big brake kits on their builds. Real cars, real results.

View Customer Builds
Care Guide
Care Guide
x

Heads Up! What to Know Before You Install

You’re here because you’re passionate about your ride, and so are we. We want your TTSPORT brake upgrade to be a total win. Here’s some straight talk to make sure everything goes smoothly, from fitment to bedding in.

Our Return Policy

Look, we know you get it. Your brake kit is custom-made for your specific car. That means once it's built, it's yours. We can only accept returns if there’s a genuine quality defect from our side.

Sometimes, aftermarket wheels can be tricky. Depending on the design, you might need spacers for clearance. We’ll do our best to help you figure it out, but issues related to wheel spacers don't qualify for a return.

1. Let's Nail the Fitment

To get this right the first time, we need your help. Before you order, please give us the following info:

  • Your vehicle's Make, Model, Year, and VIN.
  • Your wheel size and specs.

We’ll likely ask you to confirm some measurements and send a few photos of your wheels. Please double-check everything you send us. TTSPORT isn't responsible for fitment issues if the specs you provided were off.

We check every single part before it leaves our shop. When your kit arrives, give it a good look-over. If you spot any potential quality issues, let us know within 24 hours.

2. The Fun Part: Bedding In Your New Brakes

This is key to awesome performance. Don't skip it.

  1. Find a safe, open road. Bring your car up to 40 mph (approx. 65 km/h) and apply firm, steady pressure to slow down to 10 mph (approx. 15 km/h). Don't come to a complete stop. Do this 10 times to get the pads and rotors acquainted.
  2. For the next 300-600 miles (approx. 500-1,000 km), take it easy. No crazy hard stops. This cures the pads and rotors and ensures a long, happy life.
  3. You'll notice our high-carbon steel rotors have a colored, grooved surface. This isn't just for looks—it helps speed up the bedding-in process and fights off corrosion.

3. Our Promise: The TTSPORT Warranty

We build our kits to last, and we stand by our work. Here’s the breakdown:

  • Calipers: Covered for 1 year against manufacturing defects. We also offer lifetime maintenance (you just pay for parts).
  • Rotors & Hoses: Covered for 90 days against manufacturing defects. These are wear items, but you can expect them to last 25,000-35,000 miles (approx. 40,000-60,000 km) depending on your driving style.
  • Brake Pads: Covered for 90 days against manufacturing defects. Typically good for 15,000-25,000 miles (approx. 25,000-40,000 km).
  • Custom Hats/Brackets: We guarantee they'll fit perfectly out of the box. Once they're installed, they're not covered under warranty.

4. Pro Tips for Long-Lasting Performance

  1. After a session of hard driving, let your brakes cool down naturally. Don't spray them with cold water—that's a fast way to warp rotors.
  2. Brakes feel different in the rain. Give yourself some extra stopping distance.
  3. If you hear or feel anything weird—grinding, shaking, etc.—talk to your installer right away.

Recommended Service Intervals:

  • Rotors: Replace them when wear exceeds 3 mm (approx. 0.12 inches).
  • Front Pads: Plan on swapping them every 20,000 miles (approx. 32,000 km) or so.
  • Rear Pads: Usually last longer, around 35,000 miles (approx. 56,000 km).
  • Brake Fluid: Flush and replace every 25,000 miles (approx. 40,000 km) or every 2 years, whichever comes first.

You May Also Like

Example product title
From $1,060.00 USD
From $1,060.00 USD
(-0%)
Example product title
From $1,060.00 USD
From $1,060.00 USD
(-0%)
Example product title
From $1,060.00 USD
From $1,060.00 USD
(-0%)
Example product title
From $1,060.00 USD
From $1,060.00 USD
(-0%)
Example product title
From $1,060.00 USD
From $1,060.00 USD
(-0%)
Example product title
From $1,060.00 USD
From $1,060.00 USD
(-0%)
Example product title
From $1,060.00 USD
From $1,060.00 USD
(-0%)
Example product title
From $1,060.00 USD
From $1,060.00 USD
(-0%)
Example product title
From $1,060.00 USD
From $1,060.00 USD
(-0%)
Example product title
From $1,060.00 USD
From $1,060.00 USD
(-0%)

Recently Viewed Products