Does this Top Secret GT-R rear bumper set fit all R35 GTR model years?

Yes. It's designed to fit all R35 GTR model years. However, installation on 2011-2023 models requires a separate dedicated under panel, sold separately. Installation on 2008-2023 models also requires genuine rear fog lamps from the 2024 model year or later before the kit can be fitted.

Does it come painted?

No. The Top Secret GT-R rear bumper set ships unpainted. Paint and finishing should be handled by a qualified body shop prior to or during installation.

Is professional installation required?

Top Secret manufactures this aero kit with the assumption that installation will be performed at a sheet metal body shop. Professional installation is strongly recommended to ensure proper fitment, alignment, and finish.

What is the difference between the bumper section and the underbody section?

The Top Secret GT-R rear bumper set uses a three-piece structure split between two materials. The upper bumper section is made from high-strength FRP for structural rigidity and shape. The underbody section is constructed from dry carbon for reduced weight and increased stiffness, contributing to the aerodynamic performance the kit is built around.

Is the Top Secret GT-R rear bumper set part of a full body kit?

Yes. This rear bumper and under bumper were developed with compatibility in mind for the full Top Secret M24 bumper kit. It is the latest specification rear bumper in that lineup and is designed to work as part of a complete M24 aero system.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

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Description

Top Secret Rear Bumper & Under Bumper Set for R35 Nissan GT-R

The Top Secret GT-R Rear Bumper Set is the latest specification rear bumper in Top Secret’s M24 lineup, developed for compatibility with the full M24 body kit and engineered to fit every R35 GT-R model year rather than one specific chassis generation. The kit uses a three-piece structure split across two materials chosen for what each section actually needs to do; high-strength FRP for the bumper section, giving it the rigidity and shape retention a functional aero piece depends on, and dry carbon for the underbody section, cutting weight and adding stiffness where it matters most for airflow management. The geometry behind this bumper comes out of Top Secret’s own aerodynamic development, built through years of high-speed competition rather than styled after the fact, with the dry carbon underbody section working alongside the bumper’s lower profile to manage airflow at the rear of the car.

Construction and Materials

The kit uses a three-piece structure split across two distinct materials chosen for their specific roles. The bumper section is constructed from high-strength FRP (fiberglass reinforced plastic), which provides the structural rigidity and shape retention needed for a functional aero component. The underbody section is finished in top-quality dry carbon, a material chosen for its weight savings and stiffness. Dry carbon differs from standard wet-lay carbon in that it is produced under vacuum pressure and heat without excess resin, resulting in a lighter and more dimensionally consistent part. The combination keeps overall weight low while maintaining the strength the aerodynamic design depends on.

Aerodynamic Development

The geometry of this bumper is rooted in Top Secret’s aerodynamic theories, developed through years of competition on demanding high-speed stages. Rather than a purely visual upgrade, the GT-R rear bumper is shaped around performance principles that have been tested at speed. The underbody section in dry carbon works with the bumper’s lower profile to manage airflow at the rear of the vehicle, contributing to the overall aerodynamic balance of the M24 kit.

Features

Three-piece FRP and dry carbon construction
High-strength FRP bumper section
Top-quality dry carbon underbody section
Fits all R35 GTR model years
Developed alongside the full M24 body kit
Rooted in Top Secret’s high-speed aerodynamic development
Ships unpainted

Applications

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

Notes

Optional dedicated under panel available; required for 2011-2023 model year installations
Genuine 2024-2025 GT-R rear fog lamps are required for 2008-2023 model year installations
Professional body shop installation recommended
All Top Secret carbon is delivered in its raw state and will require prep and application of a UV resistant clear coat and/or PPF
Please feel free to contact us for further information on parts required for installation

Frequently Asked Questions

Does this Top Secret GT-R rear bumper set fit all R35 GTR model years? Yes. It’s designed to fit all R35 GTR model years. However, installation on 2011-2023 models requires a separate dedicated under panel, sold separately. Installation on 2008-2023 models also requires genuine rear fog lamps from the 2024 model year or later before the kit can be fitted.
Does it come painted? No. The Top Secret GT-R rear bumper set ships unpainted. Paint and finishing should be handled by a qualified body shop prior to or during installation.
Is professional installation required? Top Secret manufactures this aero kit with the assumption that installation will be performed at a sheet metal body shop. Professional installation is strongly recommended to ensure proper fitment, alignment, and finish.
What is the difference between the bumper section and the underbody section? The Top Secret GT-R rear bumper set uses a three-piece structure split between two materials. The upper bumper section is made from high-strength FRP for structural rigidity and shape. The underbody section is constructed from dry carbon for reduced weight and increased stiffness, contributing to the aerodynamic performance the kit is built around.
Is the Top Secret GT-R rear bumper set part of a full body kit? Yes. This rear bumper and under bumper were developed with compatibility in mind for the full Top Secret M24 bumper kit. It is the latest specification rear bumper in that lineup and is designed to work as part of a complete M24 aero system.

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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Top Secret Rear Bumper & Under Bumper Set for R35 Nissan GT-R

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Top Secret Rear Bumper & Under Bumper Set for R35 Nissan GT-R

Construction and Materials

Aerodynamic Development

Features

Applications

Notes

Frequently Asked Questions

About Top Secret

Reviews