VQ37VHR / VQ35HR Ported Lower Intake Manifold (2007–2020 G37 / 370Z)

Improve the breathing and performance of your VQ37VHR or VQ35HR engine with our ported lower intake manifold, precision-machined for maximum efficiency and power. Each manifold is ported 3–5mm over stock, optimizing airflow for increased horsepower, torque, and throttle response.

This modification eliminates factory airflow restrictions, allowing your engine to move air more freely—resulting in smoother acceleration and stronger midrange power. Perfect for both naturally aspirated and boosted builds, this upgrade complements other bolt-on performance parts and tuning.

Performance Benefits:

• Ported 3–5mm over stock for improved airflow

• Increases horsepower and throttle response

• Smoother, more efficient airflow path

• Precision hand-finished for consistent results
  

Every unit is carefully cleaned, ported, and prepped for easy installation—an essential upgrade for anyone serious about VQ performance.

Ceramic-Painted Lower Manifold

• Exterior ceramic paint available in any color you want

• Improved heat management and reduced intake air temperatures

• After purchase, email your order number and color choice to info@initiatemotorsport.com

Why Choose Initiate Motorsports?

Our plenums are hand-ported in-house for precision. We remove factory casting imperfections, smooth internal surfaces, and optimize airflow paths to maximize performance potential. This isn’t just theory — customers see real dyno gains when paired with proper tuning.

Tuning is highly recommended after installation to take full advantage of the added airflow.

Pricing

• $350 + $100 Core Charge (refunded once your OEM plenum is returned). You have up to 30 days to ship back the Plenum once new Plenum is delivered. 

Fitment

• 2007–2008 Nissan 350Z (HR)

• 2009+ Nissan 370Z (VHR)

• 2007–2013 Infiniti G35 / G37 (HR & VHR)

• 2014–2015 Infiniti Q50 3.7L V6

• 2014–2015 Infiniti Q60 3.7L V6

Why Upgrade?

From the factory, your VQ’s intake plenum is restrictive. By porting the runners and throttle body inlets, airflow is significantly improved — resulting in more horsepower, better mid-range pull, and harder top-end power. Combine with bolt-ons and tuning for the ultimate street or track setup.

Upgrade your VQ the right way with the Initiate Motorsports Ported Intake Plenum — proven gains, precision workmanship, and performance you can feel every time you hit the gas.