Most people who build GT-Rs spend a lot of time thinking about what happens inside the engine. Cam timing, compression, injectors, fuel maps — all the internal numbers. What they sometimes overlook is the bit right before the engine: the air delivery.

The RB26DETT in stock form has two turbochargers, which means it has two air delivery paths from the turbos into the collector. The OEM inlet pipe does the job — it's adequate for a stock car. But when you start pushing the RB26, those turbines are producing more air at higher pressure than the standard pipework was designed for, and pressure losses become real losses in power and response.

NISMO's Carbon Air Inlet Pipe addresses this directly.

What it actually does

The design smooths airflow from the turbocharger outlet to the collector, reducing pressure drop and helping both turbines perform in better balance. That balance matters more than people realise — when one turbo is fighting its routing and the other isn't, you get uneven spool, uneven power delivery, and headaches with tuning.

The material is heat-resistant dry carbon fibre — the same specification NISMO used in brake shrouds on their Super GT GT500 class race cars. Inner surface rated to 180°C heat resistance, outer to 330°C. There's an aluminium outlet fitting (black anodised) and heat-resistant silicone jointing. Engineered for sustained track abuse, not just occasional spirited driving.

Fitment notes

For BNR32: part number 14460-RRR25, ¥385,000. For BCNR33 and BNR34: 14460-RRR45, ¥385,000.

On BCNR33, BNR34, and 260RS, the main pipe can interfere slightly with the air cleaner duct — you'll need to heat-form around 10–15mm of clearance. For BNR34, fitting NISMO's R-tune air cleaner duct (16554-RSR46) eliminates the need for any modification entirely.

Also worth knowing: this pipe slightly increases boost pressure after installation. Post-installation boost calibration is strongly recommended.

If your GT-R's RB26 is built for serious performance and you're not running this yet, this is the intake upgrade that actually moves the needle.