Will this kit work on a GT-R with the factory carbon-ceramic brake option?

No, this rotor kit is built for genuine steel-caliper GT-Rs only; cars equipped with the factory carbon-ceramic brake package aren't compatible with this kit.

Does switching to this rotor kit require a caliper upgrade or new brake lines?

No, the kit is engineered to bolt directly onto the genuine factory caliper using its dedicated bracket, so there's no caliper swap or brake line change needed to run it.

Can the aluminum CBA bracket be used with the DBA/EBA/4BA rotor size, or vice versa?

No, the aluminum bracket is machined specifically for the 20mm CBA rotor increase and the steel bracket for the 10mm later-chassis increase; the two bracket and rotor combinations aren't cross-compatible.

What makes a semi-floating slotted rotor different from a standard fixed rotor?

A semi-floating design lets the rotor face move slightly relative to its hat under thermal expansion, reducing warping under repeated hard braking, while the slots help clear gas and debris from the pad surface during heavy use.

Description

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Description

Top Secret Front Slotted 2PC 400mm Brake Rotors with Special Brackets for R35 Nissan GT-R (w/o factory carbon brakes)

The Top Secret GT-R 400mm front brake rotors are a big rotor kit built around keeping the factory brake calipers in place, so there’s no caliper swap or master cylinder change needed to pick up real braking power. These are two-piece, semi-floating slotted rotors, the same racing-spec rotor design Top Secret uses when the goal is heat management and pad bite under repeated hard stops, not just a bigger-looking disc. Fitment splits by chassis code; CBA-R35 cars get a 20mm rotor size increase over the factory disc paired with a dedicated aluminum mounting bracket, while DBA, EBA, and 4BA-R35 cars get a 10mm increase paired with a dedicated steel bracket instead. Both versions bolt directly onto the genuine caliper using their chassis-specific bracket, so the install stays a rotor-and-bracket swap rather than a full brake system overhaul. This kit is not for GT-Rs equipped with the factory carbon-ceramic brake option.

Features

Big rotor upgrade
Increased braking torque and thermal capacity
Retains the factory front calipers with special brackets
CBA; 20mm larger rotor diameter than factory, with dedicated aluminum bracket
DBA / EBA / 4BA; 10mm larger rotor diameter than factory, with dedicated steel bracket
Bolt-on installation
Semi-floating, slotted motorsport-style design
Improves consistency during repeated high-speed braking
Sold as a pair (two front brake rotors)

Specifications

Rotor Diameter: 400mm
Rotor Type: 2-piece, semi-floating, slotted
Location: Front
Caliper Compatibility: Retains OEM front brake calipers
Rotor Size Increase vs. OEM:
- CBA Models: +20mm (OEM 380mm)
- DBA / EBA / 4BA Models: +10mm (OEM 390mm)

Applications

Nissan GT-R: CBA-R35, DBA-R35, EBA-R35, 4BA-R35 | 2008-2025

Notes

Sold as a front brake rotor pair
Does not fit Nismo or T-Spec models with factory carbon ceramic brakes, please refer here for NISMO and T-Spec carbon ceramic fitment
Complete the set with the rear rotors available here

Frequently Asked Questions

Will this kit work on a GT-R with the factory carbon-ceramic brake option? No, this rotor kit is built for genuine steel-caliper GT-Rs only; cars equipped with the factory carbon-ceramic brake package aren’t compatible with this kit.
Does switching to this rotor kit require a caliper upgrade or new brake lines? No, the kit is engineered to bolt directly onto the genuine factory caliper using its dedicated bracket, so there’s no caliper swap or brake line change needed to run it.
Can the aluminum CBA bracket be used with the DBA/EBA/4BA rotor size, or vice versa? No, the aluminum bracket is machined specifically for the 20mm CBA rotor increase and the steel bracket for the 10mm later-chassis increase; the two bracket and rotor combinations aren’t cross-compatible.
What makes a semi-floating slotted rotor different from a standard fixed rotor? A semi-floating design lets the rotor face move slightly relative to its hat under thermal expansion, reducing warping under repeated hard braking, while the slots help clear gas and debris from the pad surface during heavy use.

About Top Secret

Top Secret Co., Ltd. (株式会社トップシークレット, Kabushiki-gaisha Toppu Shīkuretto) is a renowned Japanese automobile tuner and parts manufacturer, founded by automotive engineer and driver Kazuhiko “Smokey” Nagata. The company is widely recognized for its expertise in tuning, aftermarket parts, body kits, and performance engineering. Top Secret’s product range includes aero components, exterior and interior parts, engine upgrades, exhaust systems, chassis, brakes, suspension, and powertrain enhancements. In addition to its products, Top Secret is also famous for its high-speed Wangan runs, as well as its involvement in professional drifting, circuit racing, and drag racing.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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