OEM VQ37VHR Upper Intake Manifold – Nissan 370Z, Infiniti G37, Q50 3.7L (2009-2020)
Restore factory performance or upgrade your VQ37VHR with this OEM upper intake manifold plenum from 2014-2015 Infiniti Q50 3.7L V6 models, a direct bolt-on for 2009-2020 Nissan 370Z and 2008-2013 Infiniti G37 Coupe/Sedan featuring Nissan’s tuned variable-length internal runners designed to maximize airflow and midrange torque from 3,500-7,000 RPM for sharper throttle response and proven gains on both NA and boosted builds, cast from OEM-grade aluminum for superior heat dissipation and durability over aftermarket composite options with no drone, idle surge, or fitment issues, reusing all factory throttle body, MAP sensor, and vacuum lines for a 100% OEM look and plug-and-play install that requires only new gaskets P/N 14035-EY00A, making it the ideal replacement for cracked, warped, or stripped plenums or the go-to OEM+ upgrade for G37/370Z owners wanting factory reliability with improved flow characteristics, and while not compatible with VQ35DE/VQ35HR engines, this VQ37VHR-specific plenum is trusted on 330hp+ applications from the factory and holds up to 7,500+ RPM and 15+ psi on boosted setups without warping or separating, delivering the balance of power, driveability, and reliability Nissan engineers intended.
Key Features:
- Direct OEM Fitment : Bolt-on for 2014-2015 Infiniti Q50 3.7L, 2009-2020 Nissan 370Z, and 2008-2013 Infiniti G37 VQ37VHR. Uses factory throttle body, sensors, and hardware with no modifications.
- Factory-Tuned Runners : OEM variable-length internal runners maximize volumetric efficiency from 3,500-7,000 RPM for stronger midrange torque and top-end power vs DE/HR plenums.
- Improved Throttle Response : Updated internal design reduces post-throttle body turbulence for sharper tip-in and cleaner power delivery compared to early VQ plenums.
- Aluminum Construction : Cast A356-T6 aluminum dissipates heat faster than composite aftermarket plenums, reducing heat soak during spirited driving and boosted applications.
- OEM Reliability : Factory Nissan/Infiniti casting means no idle surge, vacuum leaks, or check engine lights like many aftermarket welded plenums.
- Boost Proven : Same plenum used on factory 330hp+ applications. Handles 7,500+ RPM and 15+ psi on boosted VQ37 builds without warping or seam separation.
- Complete Compatibility : Reuses all OEM PCV hoses, EVAP lines, MAP sensor, and vacuum ports. Perfect for smog states needing factory engine bay appearance.
- Popular OEM+ Upgrade : Common swap for G37/370Z owners replacing damaged plenums or updating to the improved Q50/370Z runner design for 5-8whp gains with supporting mods.
- Zero Driveability Issues : No whistle at part throttle, no hunting idle, and no tune required for stock replacement. Maintains factory fuel trims and cold start behavior.
- Quality Inspected : Each unit checked for cracks, stripped throttle body threads, port damage, and flange warpage. Throttle body surface cleaned and verified flat before shipping.