There are only so many hours in the day—and too many GT-R-related projects going at once. Some are simple mods, some are massive undertakings. Others are just ideas or tech experiments that might evolve into something real (or might not). Here’s a look at what’s in the works, what’s almost finished, and what’s still halfway bolted together.
🚗 R34 GT-R Inventory
🚗 Current Nissan Skyline Inventory
This grid shows all imported Nissan Skyline models — sorted by year so R34 GT-Rs (1999–2002) appear first.
Project Highlights
Greg’s S15 (Spec-R Aero)
This car has been a struggle—but we’re finally seeing the light at the end of the tunnel. It’s been part emissions project, part gremlin, and part “why did we start this again?” But when it’s done, it’ll be a solid Nissan Challenge car.
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| Ernie. Not Ernie's car. that is Jun II |
Ernie’s R32 GT-R
Ernie’s car is getting serious track time. It’s more of a street car than Brian’s, but shares some critical hardware with some other cars—including the OS88 sequential. It’s helping us stress test driveline setups, tire compounds, and long session cooling under real-world abuse. Currently its going to get some catchcan mods, suspension, and tire upgrades.
Brian’s R32 GT-R
This is still our lead development car for track-focused GT-R tuning. With each event, the car gets faster, and the data keeps teaching us something new—especially on suspension tuning, diff temp management, and aerodynamic tweaks.
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| Screen in a mirror for a left turn/bumper lip camera |
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| GR6 with its FWD clutch |
Experiments & Oddities
- Left Turn Camera Project (RHD safety idea)
- Electronic AWD Conversion Concepts (FX transfer + R35 solenoid control)
- Hybrid Assist (BAS-style integration)
- Fan and Radiator Testing
- Consult I Data Projects (monitoring, sensor output, closed-loop logic)
- Plus a few more things...
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| Toprank LGB |
Toprank LGB – Production and Service Facility
Toprank LGB is our in-house production and service facility in Long Beach. It’s where a lot of our real-world work happens—wiring, prep, installs, and experimental testing. We also have access to a Dynapack dyno, as well as engine and transmission building services, which lets us develop, tune, and validate projects in-house. Whether it’s track prep or R34 NATS programming, this is where it all comes together.
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| KH2, KH2, and used to be KH2, now its Ernie Green |
TCS Japan & Global Programs
TCS Japan
Toprank Certified Sales Japan supports our inspection, sourcing, and fulfillment operations straight from Japan. It’s a major part of how we ensure consistent quality across all export-bound GT-Rs. You are welcome to visit, and check out our inventory when you visit Japan.
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| TCS in Japan |
243-7 Bansho,
Noda-shi, Chiba,
278-0041, Japan
TEL：04-7168-0924
FAX：04-7168-0925
Global Tuning Program (GTP)
https://toprankglobal.jp/global_tuning_program/
GTP connects global owners with quality tuning parts and matched builds directly from our Japan operation. More than just a catalog, it’s a parts+advice ecosystem.
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| Built by Legends R34 GT-R |
Built By Legends
https://www.importavehicle.com/built-by-legends
We continue to support Built By Legends with logistics, sourcing, and vehicle support. Legacy builds for legacy platforms—this one speaks for itself.
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| R34 GT-R and Valet/spare keys |
R34 Key Programming and NATS Integration
R34 GT-R Key & NATS Blog
We can program R34 GT-R keys for vehicles still using the factory OEM ECU and NATS (Nissan Anti-Theft System). This service is available to our customers, but if you're stuck and need help, feel free to reach out.
R34 MFD Projects
We’ve been working on multiple ideas around the R34 Multi-Function Display (MFD). These include original unit repairs and upgraded replacements that maintain the factory look while improving reliability and adding sensor support. One prototype keeps the stock shell but adds new graphics and consult inputs—another is a full digital display in a plug-and-play form.
Technical Data & Testing
BAS Hybrid Dyno Charts
We’ve been looking at Belt Alternator Starter (BAS) units, checking out the torque-fill and regen potential. Low-end torque increases could be measurable, though modest—but the packaging potential and simplicity make it worth exploring for some use cases.
Testing NVCS timing activation points showed improvements in boost threshold and midrange drivability. Slight cam timing changes make more difference than you'd expect when dialed for real-world driving.
New Coil Testing
We’ve been testing a number of R35-style and aftermarket coil packs. Some show better performance at high RPM under load, especially with proper dwell control and heat management.
Reverse Cooling Development
We’re experimenting with reverse-flow cooling on the RB platform. Head-first flow provides better temperature consistency under boost and reduces localized knock risk. Early testing includes plumbing mockups and simulation.
GTRUSA & GT-R Assistant
The new GTRUSA site is being rebuilt on WordPress for better SEO, organization, and blog integration. It will serve as a central hub for parts guides, import data, and general GT-R knowledge.
We’re prototyping a GT-R-specific AI assistant that can answer common questions, surface specs, and cross-reference blog posts, tech data, and part numbers. Early access tools are being tested now.
Aero, Comfort, and Modernization
Aero Work
We’re testing real aero pieces on track: splitters, diffusers, and fender vents. Data from temps, tire wear, and GPS overlays is helping us shape better-functioning packages.
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| Swapping the A052R for the Hoosier R7's on Ernies R32 GT-R |
Smart Mirror System
For R32–R34, we’re working on a digital mirror retrofit that includes a backup cam, blind spot view, dashcam functionality, and possible telemetry overlays—OEM feel, modern function.
Interior Comfort Mods
- Heated/cooled seat retrofits
- Better sound insulation
- Updated lighting
- Plug-in power upgrades and discreet modern touches
Blog Plans
There are over 50 draft blog posts in progress, covering everything from subframe swaps to obscure tech hacks. Stay tuned for more posts—and maybe some weird stuff we haven’t even thought of yet.
Seen something here you want more info on? DM us @GTRUSABlog or visit www.gtrusa.com.
Buy USA Legal R32, R33, and R34 Skylines at Toprank Importers!
Index and Start Page
Nissan Skyline Parts and Toys
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