GKTech Infiniti Nissan Z33 350Z / G35 VQ35DE Plenum spacer

The GKTech Plenum Spacer for the Nissan 350Z and Infiniti G35 (VQ35DE) is designed to increase intake volume, improve airflow, and enhance engine efficiency, resulting in gains in horsepower and torque across the mid-to-high RPM range.

By raising the upper plenum, this spacer optimizes airflow distribution to all six cylinders, reducing air turbulence and allowing for a more even fuel mixture. This upgrade is particularly beneficial for naturally aspirated VQ35DE engines, improving throttle response and overall power delivery.

Key Features:

• Increased Plenum Volume – Allows better airflow distribution for improved power gains.

• Enhanced Mid-to-High RPM Performance – Notable increases in horsepower and torque.

• Improved Throttle Response – Smoother acceleration and better engine efficiency.

• Precision CNC-Machined Construction – Ensures a perfect fit and optimal sealing.

• Direct Bolt-On Installation – No permanent modifications required; compatible with factory hardware.

Specifications:

• Material: CNC-machined high-quality billet aluminum

• Thickness: Optimized for maximum airflow gains

• Fitment Type: Direct bolt-on with OEM or aftermarket intakes

Compatibility:

• Nissan 350Z (Z33) – 2003-2006 (VQ35DE engine only, does NOT fit Rev-Up or HR models)

• Infiniti G35 (V35) Coupe & Sedan – 2003-2006 (VQ35DE engine only)

What’s Included:

• (1) Plenum Spacer

• (1) Set of extended mounting hardware

• (1) High-quality gasket for proper sealing

Notes:

• Dyno-proven horsepower and torque gains, especially in mid-range RPMs.

• Works best when paired with intake and exhaust modifications for maximum performance.

• Not compatible with VQ35DE Rev-Up (2006) or VQ35HR (2007+) engines.

Upgrade your 350Z or G35 with the GKTech Plenum Spacer to unleash better airflow, improved throttle response, and increased horsepower, making the most of your VQ35DE engine’s potential!