GT-R R35 Dragon Afterfire.
Flames on demand, pops and bangs, and four personalities on one steering-wheel button — engineered at the calibration level on the VR38DETT. Developed in Tokyo. Supplied worldwide.
What we unlock on the R35
The VR38DETT twin-turbo V6 is one of the most rewarding platforms we tune — and everything below is pure calibration. No gimmick boxes, no hardware tricks.
Dragon Afterfire
Visible flames on demand — our signature calibration, engineered at the calibration level.
Pops & Bangs
From a subtle lift-off gurgle to loud, aggressive crackle. You choose the character.
4 switchable maps
Mild Burble / Heavy Burble / Dragon Afterfire / Launch Mode — switched from the steering wheel, hands never leaving it.
Power
Up to 667 HP on supporting hardware, with factory-grade drivability retained.
The mbFAST difference: engineered to last
Anyone can make a car pop for a demo. The difference is what it costs the engine. Our calibrations are developed in-house in Tokyo and run daily on thousands of cars across Japan’s largest pops-and-bangs network — maximum theatre, with the engine and catalytic converters protected. It’s why franchise workshops across Japan — and now overseas — run our files instead of building their own.
| Configuration | Output |
|---|---|
| Stock catalytic converter | approx. 580 HP |
| Cat delete | approx. 605 HP |
| Cat delete + intake + plugs + 4-inch exhaust + fuel pump | approx. 667 HP |
| Above + 1000cc injectors | approx. 710 HP |
Proof, not promises
Case study: 667 HP Dragon Afterfire build
A repeat client’s GT-R with the full 4-map setup, filmed in 360°. Watch it breathe fire.
Why tune your GT-R in Japan
The R35 was engineered here, raced here, and mythologized here. A calibration developed in the GT-R’s home market — on Japanese fuel, Japanese roads, and more R35s than any overseas shop will ever see — is part of the car’s story. Owners fly in for it. Workshops abroad license it.
FAQ
Is pops and bangs safe for the VR38DETT?
Yes. Every calibration is developed and validated in-house, and thousands of installations across our network run daily on it — maximum sound, with engineered margins that protect the engine and catalytic converters.
Can I turn it off?
Yes. That’s the point of the 4-map setup: switch maps from the steering wheel in seconds. Quiet for the neighborhood, fire for the weekend.
Do I need an aftermarket exhaust?
Pops and bangs work on many configurations, but character and volume depend on your exhaust setup. Catless or high-flow setups produce the most dramatic results — including Dragon Afterfire.
Is this legal?
Afterfire and aggressive pops-and-bangs configurations are intended for closed-course and off-road use. Emissions and noise regulations vary by country — check your local laws.
I run a workshop outside Japan. Can I offer this?
Yes — that’s exactly what our dealership program is for. We supply calibration files and support partner workshops worldwide.
Get it on your GT-R
Tune at our Tokyo HQ, via nationwide mobile service in Japan, or through a partner workshop near you.