The GReddy Intake Plenum for S14/S15 (Pulsar Throttle Body) is a high-performance upgrade designed to improve airflow efficiency and power potential for Nissan SR20DET engines. By optimizing intake air distribution, this plenum helps support increased horsepower and improved throttle response in both street and track applications.

The factory intake plenum can become restrictive at higher power levels. GReddy’s redesigned plenum features a larger internal volume and smoother airflow path to reduce turbulence and improve cylinder-to-cylinder air distribution. This version is configured to use a Pulsar (larger) throttle body, allowing for increased airflow capacity in high-performance builds.

Features

• High-flow intake plenum for SR20DET engines
• Designed for S14 and S15 applications
• Optimized internal volume for improved airflow distribution
• Supports use of Pulsar throttle body for increased airflow
• Improves throttle response and high-RPM performance
• Cast aluminum construction for durability

Fitment Notes

• Fits Nissan Silvia S14 and S15 (SR20DET)
• Designed for use with Pulsar throttle body
• Additional modifications or components may be required for installation
• Professional installation recommended

Installation / Recommendations

• Recommended for use with upgraded turbo and supporting modifications
• ECU tuning recommended to maximize performance gains
• Verify compatibility with intercooler piping and throttle body setup

The GReddy S14/S15 intake plenum is an excellent upgrade for SR20DET builds looking to increase airflow capacity and unlock additional performance. Ideal for high-horsepower street cars, track builds, and turbocharged performance setups.