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The Z1 Motorsports VQ35HR Intake Plenum Power Mod is a stock intake plenum custom modified and ported to produce significant gains in horsepower and torque across the the entire powerband.  This plenum fits all models with the VQ35HR engine, including the '07+ 350Z & '07-'08 G35 Sedan. This upgrade is easy to install and can be swapped out in around half an hour.

In order to maximize the potential of the higher flowing Z1 modified VQ35HR intake manifold, we recommend several other basic upgrades as well as custom tuning at Z1 Motorsports.  It's best to have your car custom dyno tuned to safely maximize the potential of performance modifications and we at Z1 Motorsports tune more VQ's with the Uprev Osiris software than anyone.  However if having your car tuned at Z1 is simply not an option, based on our library of experience, we can provide a map well suited for your specific upgrades through our Mail-in Flash Service.

The Z1 intake plenum produces more peak power and area under the curve on a Natural Aspirated VQ35HR than any intake manifold on the market and for a modest price. 

For your convenience we offer the option to pay a refundable core charge and send your stock intake plenum back after install of the Z1 plenum in order to eliminate downtime.  If you return a core please pack it carefully.  If we receive it in damaged condition, such as any broken plastic air inlets, no credit will be given.  View our core return form and policy

This item is currently produced per-order and not stocked. An average lead time of approximately 3-4 weeks should be expected once core is recieved.


  • 2007-2009 Nissan 350Z
  • 2007-2008 Infiniti G35 Sedan
  • 2009-2012 Infiniti FX35
    (S51 Chassis w/ VQ35HR)

Available Options:

Core Charge:


Reviews Ask A Question About This Product

Questions our customers have asked...

Two questions, this mod fits an 03 350z correct and would I also need the lower intake manifold mod for this to fit on the oem?

Response: Willie, This intake is for the VQ35HR found in 2007-2008 350Z / G35 Sedan ONLY and will not fit any year DE. Regards, Z1 Team