Email: sales@ttsport-racing.com
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Product Detail
xThe Definitive Brake Upgrade for Prado & Lexus GX
Your Prado or GX is a capable rig, but its factory brakes are its Achilles' heel. This is the definitive fix. Our Vehicle-Specific 6-Piston Front Big Brake Kit is purpose-built for the J150 platform, delivering the stopping power and thermal endurance you need for heavy-duty off-roading, overlanding, and towing.
This complete system features a powerful 6-piston forged caliper and an oversized 345mm high-carbon rotor that directly replace the inadequate factory components. The result is a massive improvement in braking force, a firm and confident pedal feel, and the thermal capacity to handle steep descents with heavy loads. Best of all, it's a true bolt-on installation that fits behind your factory 17" or larger wheels.
Technical Specifications & Kit Options
The following data highlights the engineering behind this kit's heavy-duty performance. Note the large piston area for maximum clamping force and the oversized rotor for superior heat dissipation. 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 | Vehicle-Specific Series |
| Application | Toyota Land Cruiser Prado (J150) & Lexus GX (J150) |
| Mounting Position | Front Axle |
| Piston Count | 6-Piston, Staggered |
| Piston Type | 2-Piece Vented with Dust Boots |
| Piston Diameter | 30 mm / 34 mm / 38 mm (1.18 in / 1.34 in / 1.50 in) |
| Total Piston Area | 54.95 cm² (8.52 in²) |
| Construction | 2-Piece Forged Aluminum Alloy |
| Net Weight | 4.45 kg (9.81 lbs) (Single Caliper, No Pads) |
| Finish | High-Temperature Gloss Coating |
| Min. Wheel Size | 17" Recommended |
| Rotor Specification | |
| Material | High-Carbon Steel |
| Dimensions | ⌀345 mm (13.58 in) × 32 mm (1.26 in) thick |
| Construction | 1-Piece Vented |
| Surface Patterns | Curved 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) |
Will It Fit? Your 3-Step Check
1. Wheel Diameter
Confirm you are running 17" or larger wheels.
2. Spoke Clearance
Measure from the rotor mounting face to the back of the wheel spokes. You need at least 101 mm (3.98 in) of clearance.
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.
Frequently Asked Questions
Is this a true bolt-on kit?
Yes, 100%. This kit is engineered to replace your factory components using the original mounting points. Everything you need is included, and no permanent modifications to your vehicle are required.
Will this really fit my stock 17" wheels?
Yes, this kit was specifically developed to clear factory 17-inch and larger wheels on the J150 platform. While fitment is confirmed for most OEM wheels, we always recommend using our printable template to double-check clearance against your specific wheels before installation.
Why are the stock Prado/GX brakes so inadequate?
The stock single-piston sliding calipers are designed for on-road use with stock tires and no extra weight. Once you add bigger tires, steel bumpers, roof racks, or a trailer, the factory system is easily overwhelmed by the added mass and leverage, leading to severe brake fade. Our 6-piston fixed caliper and larger, thicker rotor provide the massive increase in thermal capacity needed to handle that extra load safely and consistently.
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 kit includes:
- 2x 6-Piston Forged Calipers
- 2x 1-Piece 345mm High-Carbon Steel Rotors
- 1x Set of M-01 Street Performance Brake Pads
- 2x Stainless Steel Braided Brake Hoses
See This Kit In Action
Check out how other owners are using our truck & SUV kits on their builds. Real rigs, real results.
View Customer BuildsCare Guide
xHeads 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.
- 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.
- 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.
- 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
- 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.
- Brakes feel different in the rain. Give yourself some extra stopping distance.
- 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.
- Choosing a selection results in a full page refresh.