RB26DETT engines in the R32, R33, and R34 Skyline GT-R benefit from optimized intake manifolds when running high boost or large single-turbo setups. The GReddy Intake Plenum Single 90mm Throttle Surge Tank (13522307) is a high-performance upgrade that replaces the factory individual throttle bodies with a single 90mm throttle body and a massive 4.1L surge tank — 121% larger than OEM. This design emphasizes a balance of high power and strong mid-range torque, with CNC machined primary runners and tuned internal velocity stacks for improved efficiency and airflow distribution.
The thick 3mm formed metal tank is welded to a precision machined, grooved base plate for extra rigidity under high boost, while specially designed O-ring gaskets provide superior sealing for each runner. The kit includes the surge tank with six primary runners and the 90mm throttle body, compatible with OEM AAC valve and TPS. Testing on a high-powered R32 GT-R showed substantial gains, increasing from 958 HP / 663 ft-lbs to 1023 HP / 697 ft-lbs.
At Terra Firma Automotive, we supply this genuine GReddy Intake Plenum Single 90mm Throttle Surge Tank as a premium intake upgrade for RB26DETT owners seeking better flow and torque. It transforms your intake system into a strong, efficient setup that supports greater power goals while providing a clean, professional appearance. For enthusiasts serious about intake optimization and maximizing RB26DETT performance, this GReddy plenum is one of the most effective upgrades you can make to your Skyline.
- GReddy Intake Plenum Single 90mm Throttle Surge Tank for RB26DETT
- 4.1L surge tank (121% larger than OEM) for improved airflow
- Single 90mm throttle body with low-profile shaft
- CNC machined primary runners with tuned velocity stacks
- Thick 3mm formed metal tank for high-boost rigidity
- Precision machined grooved base plate with O-ring gaskets
- Compatible with OEM AAC valve and TPS
- Substantial power gains shown in testing (958 HP to 1023 HP)
- Ideal for high-boost and single-turbo RB26DETT builds
- Premium GReddy engineering with proven real-world results
- Direct upgrade for R32, R33, and R34 GT-R engines
- Enhances mid-range torque and overall power delivery
- Clean, professional anodized appearance in the engine bay
- Essential intake upgrade for optimized RB26 performance
- ⚠️ Emissions / California Legal Disclaimer – Off-Road / Competition Use Only: This product is intended for off-road, competition, and track use only. It is not legal for sale or use on public roads or highways in California (or any other CARB-adopting state). For more information Click Here.
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