MODIFIED NISSAN GT-Rs FOR SALE

The Nissan GT-R has earned an extraordinary reputation among performance enthusiasts, but for some owners, its factory capabilities are only the beginning. Upgraded turbochargers, enhanced fueling systems, custom engine builds, reinforced transmissions, and carefully selected supporting modifications can transform the R35 into something far beyond its original specification. At THE-BOSS, our modified GT-R inventory includes everything from tastefully upgraded street cars to extensively built, four-digit-horsepower machines, each offering a different interpretation of Nissan's legendary performance platform. Whether you're searching for a modified Premium, a high-horsepower anniversary model, or a particular custom configuration, our dealership serves buyers nationwide from Dallas, Texas, with free nationwide shipping included with every vehicle purchase.


HAVE QUESTIONS OR READY TO BUY A MODIFIED GT-R?

You can contact us by:
- Calling or texting us at 214.699.9764- Email us at moc.ssob-eht%40selas- Using the inquiry form below.
Have a particular build in mind? Tell us your preferred horsepower range, model, modifications, mileage, condition, or intended use. If the right GT-R isn't currently available, our team can help locate a modified one through our nationwide network of dealerships, collectors, and private sellers.

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OUR CURRENT MODIFIED NISSAN GT-R INVENTORY

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2019 NISSAN GT-RPREMIUM 1700 HP

$184.9k

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2020 NISSAN GT-R PREMIUM 50TH ANNIVERSARY 1400 HP

$184.9k

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2020 NISSAN GT-R PREMIUM50TH ANNIVERSARY 700 HP

$149.9k

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2020 NISSAN GT-RPREMIUM 700 HP

$124.9k

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2020 NISSAN GT-R PREMIUM50TH ANNIVERSARY 700 HP

$119.9k

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2017 NISSAN GT-R PREMIUM 1800 HP

SOLD

Want to view our entire current and sold inventory for all makes and models? Simply click HERE


WHY A MODIFIED GT-R STANDS APART

Few modern performance platforms offer the Nissan GT-R's combination of sophisticated factory engineering, extensive aftermarket development, and extraordinary potential for customization.
At the heart of the R35 is Nissan's hand-assembled VR38DETT twin-turbocharged V6, paired with an advanced all-wheel-drive system and six-speed dual-clutch transmission. Although later GT-R Premium models produce 565 horsepower in factory form, the platform has become a favorite among builders pursuing everything from modest performance improvements to extraordinary four-digit-horsepower configurations. Upgraded turbochargers, intercoolers, fueling systems, engine components, and transmission hardware allow owners to develop cars around very different performance goals. Some modified GT-Rs retain the comfort and appearance of a factory street car, while others prioritize maximum acceleration, track performance, or specialized competition use. This extraordinary flexibility has created an enthusiast market where the individual build can be just as important as the original vehicle. 
At THE-BOSS, we appreciate the individuality of a properly developed GT-R, offering enthusiasts access to distinctive builds with performance, equipment, and specifications beyond the factory lineup.

WHAT DEFINES A MODIFIED GT-R


STREET-FOCUSED PERFORMANCE UPGRADESNot every modified Nissan GT-R needs an extensively rebuilt engine or an extraordinary horsepower figure to deliver a dramatically different driving experience. Many enthusiasts prefer carefully selected upgrades that enhance the factory platform while retaining its everyday comfort and versatility. Aftermarket exhaust systems, upgraded intakes, intercoolers, improved fueling components, and custom ECU tuning can increase performance while preserving much of the GT-R's original character. Depending on the individual build, owners may also install upgraded wheels, tires, suspension components, and exterior enhancements to create a car that feels more personalized without becoming an exclusively track-focused machine.For buyers, a tastefully modified street car can offer an appealing balance between performance and practicality, particularly when the upgrades have been selected to work together. A GT-R with a clearly documented modification list, reputable components, professional installation, and a well-developed tune offers a much clearer picture of what you're purchasing. Our inventory has included 700 HP GT-R Premium models with upgraded intake and exhaust components, enhanced fueling systems, and custom ECU tuning, demonstrating how extensively a street-oriented GT-R can be personalized. Understanding the complete setup is an important part of choosing a car that fits your driving preferences.
HIGH-HORSEPOWER & BUILT ENGINE CONFIGURATIONSFor enthusiasts pursuing substantially greater performance, the GT-R's aftermarket offers a remarkable range of possibilities. Larger turbocharger systems, upgraded fuel injectors, high-capacity fuel pumps, enhanced intercoolers, and carefully calibrated engine management can support significant power increases. More extensive configurations may also include strengthened internal engine components, upgraded cylinder heads, specialized cooling systems, and supporting drivetrain modifications. The individual combination of hardware and tuning determines how a particular GT-R delivers its performance, with some builds emphasizing responsive street driving and others prioritizing maximum acceleration or competition-oriented power. These differences become particularly important when shopping for a GT-R advertised with four-digit horsepower. Two cars with similar peak power figures can have very different characteristics depending on their turbocharger configuration, fuel requirements, engine construction, and calibration. Available dynamometer results, component receipts, engine-build records, and tuner information can help buyers understand how the advertised performance was achieved. THE-BOSS's advertised selection includes GT-Rs producing up to 1,700 HP, giving enthusiasts access to extensively modified examples that would require considerable planning and investment to recreate from an unmodified vehicle.
TRANSMISSION, TRACTION & SUPPORTING HARDWAREA modified GT-R's performance involves far more than its engine, especially when substantial increases in horsepower place additional demands on the drivetrain. Nissan's sophisticated ATTESA E-TS all-wheel-drive system and dual-clutch transmission form an impressive factory foundation, but extensively modified examples may require upgraded transmission components, stronger clutches, additional cooling, and specialized calibration. Depending on the car's intended use, builders may also address the suspension, braking system, tires, and chassis setup to complement the increased power. The goal is a complete performance package rather than an impressive horsepower figure supported by otherwise standard components. For prospective buyers, these supporting modifications can reveal a great deal about how thoughtfully a GT-R was developed. A properly documented build should make it possible to understand which components were upgraded, who performed the work, and how the finished vehicle was intended to be used. Transmission behavior, available maintenance records, tire selection, suspension condition, and cooling-system modifications all deserve consideration when evaluating a powerful example. An extensive modification list can be exciting, but the relationship between those components is what determines how the car performs and how confidently an owner can approach the ownership experience.
PREMIUM, ANNIVERSARY & SPECIALTY BUILDSThe modified GT-R market is particularly interesting because builders can begin with several different factory configurations. The GT-R Premium offers an appealing foundation for street-focused and high-horsepower projects, combining the R35's celebrated performance with a refined interior and everyday versatility. Anniversary models introduce distinctive factory colors and commemorative details, allowing enthusiasts to develop extraordinary performance builds without sacrificing the visual identity of a special edition. Other configurations, including the NISMO and Track Edition, offer their own factory-developed characteristics and attract buyers with different expectations for originality, customization, and performance.
At THE-BOSS, our modified inventory reflects the diversity of the GT-R community, with upgraded Premium models and high-horsepower 50th Anniversary Editions offering distinctly different ownership experiences. Some customers are searching for a relatively understated GT-R with meaningful performance improvements, while others want a highly developed build with an extensive modification list and exceptional power. Factory equipment, original condition, mileage, performance components, and overall presentation all influence the appeal of each vehicle. Rather than treating every modified GT-R as interchangeable, we recognize that the individual combination of factory specification and aftermarket development is what makes each example unique.

BUYING A MODIFIED GT-R

Purchasing a modified Nissan GT-R involves understanding both the original vehicle and the work that has transformed it. Horsepower figures are exciting, but the modification list, quality of installation, tuning, maintenance history, and supporting components are equally important when evaluating a particular build. Buyers should review available receipts, dynamometer results, engine and transmission specifications, previous ownership, mileage, and any specialized fuel requirements. Understanding how the vehicle was developed can help distinguish a carefully planned street car from a more extensive performance project intended for a very different driving experience.

Finding the right modified GT-R often comes down to your expectations for performance, drivability, appearance, and long-term ownership. Some enthusiasts want a comfortable street car with additional power, while others are searching for an extensively built example that would be difficult to recreate from scratch. At THE-BOSS, we help customers understand the individual specifications of available vehicles and explore builds that align with their preferences. Whether you're interested in a modified Premium, a high-horsepower anniversary model, or a particular custom configuration, our goal is to help you find a GT-R that delivers the experience you're looking for.

WHY BUY FROM THE-BOSS

At THE-BOSS, we understand that shopping for a modified Nissan GT-R requires a different approach than purchasing an ordinary performance car. Every build has its own combination of upgrades, mechanical specifications, history, and individual character, making accurate vehicle information especially important. Our experience with exotic, collectible, and enthusiast vehicles allows us to appreciate those differences and discuss the details that matter to prospective buyers. We highlight available modification records, distinguishing equipment, performance specs, and vehicle history so customers can make informed decisions about the GT-R they're considering.

Our dealership is based in Dallas, Texas, but we serve GT-R enthusiasts and collectors throughout the United States. Whether you're interested in an available high-horsepower build or searching for a particular modified configuration, our nationwide network of dealerships, collectors, and private sellers allows us to explore additional opportunities. Our team assists with vehicle information, purchasing arrangements, and remote transactions, providing personalized service and clear communication throughout the process. With free nationwide shipping, THE-BOSS makes it convenient to purchase a modified GT-R that matches your expectations, wherever you live.

Frequently Asked Questions

Clear explanations for all the common questions you might have.

  • Established in 2014, THE-BOSS is an independent exotic and luxury vehicle dealership based in Dallas, Texas. We specialize in distinctive performance vehicles, including rare, collectible, and modified cars. Our vehicles are stored in a private warehouse and shown by appointment only. Contact our sales team to schedule a private viewing of a car you're interested in. 

  • Absolutely! We work with customers throughout the United States, allowing you to purchase a car without traveling to Dallas. Our team can provide vehicle information, answer questions, discuss payment options, and coordinate the purchase process remotely. Once your transaction is finalized, we'll arrange delivery directly to your destination with free nationwide shipping. 

  • THE-BOSS offers free nationwide shipping, allowing customers throughout the United States to purchase vehicles from our Dallas inventory without a separate transportation charge. We arrange transportation to your destination using professional vehicle carriers, with both open and enclosed trailers available. Vehicles are fully insured during transportation, and delivery typically takes less than one week, depending on your location and scheduling. 

  • While THE-BOSS does not offer traditional in-house financing, we work with any bank or credit union of your choice to accommodate your vehicle purchase. We also offer a no-credit-check leasing program for eligible vehicles, providing an alternative to conventional financing. Our team can walk you through the available leasing options, down payment requirements, and payment terms to help you determine which purchasing arrangement works for you.

  • THE-BOSS has no additional dealer fees on vehicle listings. Applicable sales taxes, title expenses, and registration requirements may vary depending on your state and purchase arrangement. Before finalizing your purchase, we'll provide the applicable transaction details so you can review the total cost of your vehicle, including any state-specific charges. 

  • Yes. THE-BOSS offers complimentary PPIs at a local Nissan dealership following a deposit on listings. We also provide vehicle-specific information, including available CARFAX reports and documentation, to help you evaluate your purchase. Contact our team to confirm the inspection arrangements and deposit conditions for your particular car. 

  • Absolutely! If you have a car in mind that isn't currently in our inventory, we can help you find it through our nationwide network of dealerships, collectors, and private sellers. Whether you're searching for a specific model, edition, color, or custom build, our team can source cars that match your preferences. Once we've found the right car, we can coordinate the purchase and arrange shipping directly to you.

  • Contact our sales team by phone, text, or through the inquiry form with the details of the vehicle you're interested in. We'll confirm availability and explain the next steps for securing the car, including any applicable reservation deposit, financing arrangements, and purchase documentation. Any required deposit and its cancellation or refund conditions should be confirmed before payment is sent.