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VQ35DE Ported, Polished & Ceramic-Painted Upper Plenum
Maximize your VQ35DE’s performance with our ported, polished, and ceramic-painted upper plenum, designed for better airflow, lower intake temperatures, and increased efficiency. We’ve optimized the intake entrance for improved airflow, removed factory casting marks, and polished the interior for a smoother, turbulence-free path—helping your engine breathe better and make more power.
Performance Benefits:
✔ Increased Airflow – Ported intake entrance allows for better volume and velocity
✔ Enhanced Throttle Response – Smoother airflow means faster acceleration
✔ Lower Intake Temperatures – Ceramic-painted exterior reduces heat soak, improving efficiency
✔ Polished Interior – Reduces turbulence for a cleaner, more efficient air charge
✔ More Consistent Power Delivery – Removing factory imperfections leads to a smoother powerband
Customizable Ceramic Paint – Choose Your Color!
Not only does our ceramic paint help with heat management, but you can also customize your plenum’s color. After placing your order, simply email your order number and color choice to info@initiatemotorsport.com.
If you’re looking for cooler intake temps, better throttle response, and optimized airflow for your VQ35DE-powered 350Z, G35 this ported upper plenum is a must-have upgrade. Get yours today and let your VQ breathe!
Core Exchange Program – Get $50 Back!
Send us your original upper plenum after purchase, and we'll refund you $50. It's that simple!
Fits -
2003 - 2006 G35 Sedan
2003 - 2007 G35 Coupe
2003 - 2006 350Z
Good to know
Questions
How do I pick my color?
Pick a ceramic paint color above and it's saved with your order. Want a color that isn't listed? Add it in your order notes or email info@initiatemotorsport.com with your order number.
How does core exchange work?
After your new part arrives, ship us your factory part and we refund $50.
When will it ship?
Every ported part is made to order, so most orders ship in 2–3 weeks. Contact us anytime for a current estimate.
Which gaskets do I need?
Reseal with a fresh Fel-Pro MS 96454-1 gasket kit for DE and Rev Up engines.
Not sure it fits your car?
Send us your year, model and mods through the contact page or Instagram DM and we'll confirm before you order.
Complete the install
Customer builds