Does this diffuser install alongside the factory front lip, or does it replace it?

It installs as a direct replacement for the genuine front lip spoiler, so the factory lip comes off rather than staying on underneath this piece.

What's the purpose of the included aluminum plate, and is it required for installation?

The aluminum scratch-resistant plate protects the floor section from friction damage on low ride heights or steep approaches; it's included with the diffuser to protect the carbon from that kind of contact.

Description

Additional Info

Shipping policy

BP PRICING DIFFERENCE

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Description

Top Secret Carbon Front Under Diffuser for DBA-R35 Nissan GT-R

The Top Secret DBA GT-R front diffuser is built for MY11-onward GT-Rs and installs as a direct replacement for the genuine front lip spoiler rather than stacking on top of it. It’s shaped to capture airflow at medium to high speeds and convert that into downforce, which is what actually stabilizes the front end at speed instead of just changing the front lip’s profile visually. Top Secret built in brake cooling ducts as part of the diffuser itself, so airflow gets routed toward the front brakes to help manage braking performance under repeated hard stops, not just downforce alone. An aluminum scratch-resistant plate ships with it to protect the floor section from friction damage on lower cars or rough driveway approaches. The diffuser itself is wet carbon fiber, a construction method Top Secret chose specifically for this piece for its durability over dry carbon layup.

Features

Direct replacement for the genuine front lip spoiler
Captures airflow at medium-high speeds to generate front-end downforce
Integrated brake cooling ducts to support braking performance
Includes an aluminum scratch-resistant plate to protect the floor from friction damage
Built in wet carbon fiber for added durability

Applications

Nissan GT-R: DBA-R35 | 2012-2016

Notes

This diffuser is designed for 2012-2016 DBA-R35 GT-Rs and replaces the genuine front lip spoiler rather than mounting alongside it; earlier CBA and later EBA / 4BA model years are not compatible
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

Frequently Asked Questions

Does this diffuser install alongside the factory front lip, or does it replace it? It installs as a direct replacement for the genuine front lip spoiler, so the factory lip comes off rather than staying on underneath this piece.
What’s the purpose of the included aluminum plate, and is it required for installation? The aluminum scratch-resistant plate protects the floor section from friction damage on low ride heights or steep approaches; it’s included with the diffuser to protect the carbon from that kind of contact.

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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