Best Intake Plenum Spacers

Looking for the best intake plenum spacers to boost your vehicle’s performance? We’ve curated a list of the top 10 intake plenum spacers tailored to specific makes and models, offering you an engaging guide to upgrade your ride with confidence.

Intake plenum spacers are a simple yet powerful upgrade for your vehicle. They boost engine performance by increasing airflow and cooling intake air. Whether you’re a car enthusiast or just looking for better power, these spacers deliver noticeable results.

Choosing the right spacer can feel overwhelming, but we’ve done the hard work for you. Our guide highlights the best intake plenum spacers on the market, tailored to specific makes and models. From Nissan 350Z to Ford Mustang, we’ve got you covered.

Upgrade your ride, feel the difference, and drive with confidence. Let’s dive in!

List of Top 10 Intake Plenum Spacers

Title	Best For	Price
Woosphy 5/8″ Intake Manifold Thermal Shield Plenum Spacer Replacement for Nissan 350Z Infiniti G35 3.5L V6 2002-2009	This Woosphy 5/8″ Intake Manifold Thermal Shield Plenum Spacer is perfect for Nissan 350Z and Infiniti G35 owners with non RevUp engines. It fits 2002-2009 models, keeping your engine cooler and running smoothly.	View on Amazon (paid link)
Thermal Shield Intake Plenum Spacer BXIM-40201 Compatible with Nissan 350Z / Infiniti G35 5/16 Inch Intake Manifold Plenum Spacer BXIM-40201-G2	This product is perfect for car enthusiasts and owners of Nissan 350Z or Infiniti G35 models from 2003-2005. It’s ideal for those looking to improve their engine’s performance with an easy upgrade.	View on Amazon (paid link)
40201 BXIM-40201-G2 Blox Racing 516 Inch VQ35 Thermal Shield Intake Plenum Spacer Compatible with Nissa-n 350Z Infinit-i G35	This Blox Racing Intake Plenum Spacer is perfect for car enthusiasts who want to boost their Nissan 350Z or Infiniti G35’s performance. It’s easy to install and built to last, making it ideal for DIY upgrades.	View on Amazon (paid link)
AUTOVIC Intake Plenum Spacer 1’’ Billet Aluminum Compatible with Ford F-250 F-350 5.8L Engines 1988-1997 for Felpro MS 94176	This AUTOVIC Intake Plenum Spacer is perfect for Ford F-250 and F-350 owners with 5.8L engines from 1988 to 1997. It’s ideal for those looking to boost engine performance with a durable, billet aluminum spacer.	View on Amazon (paid link)
Skunk2 Racing 307-07-0400 Composite V2.0 Plenum Spacer for Nissan VQ Engines	This Skunk2 Racing Plenum Spacer is perfect for Nissan VQ engine owners who want more power and better fuel efficiency. It’s easy to install and works great for 3.5 VL VQ35 engines.	View on Amazon (paid link)
XYZIL 5/16″ Thermal Shield Intake Plenum Spacer BXIM-40201 Compatible with Nissan 350Z Coupe 2002-2008 Roadster 2003-2009 Compatible with Infiniti G35 Sedan 2003-2006 Manifold BXIM40201 BXIM-40201-G2	This XYZIL Thermal Shield Intake Plenum Spacer is perfect for car enthusiasts who want to boost their engine’s performance. It’s ideal for Nissan 350Z and Infiniti G35 owners looking to lower intake air temperatures and improve power.	View on Amazon (paid link)
Skunk2 Racing 907-05-9101 Ultra B/K-Series Black Street Intake Manifold Spacer (+.5 Liter)	This Skunk2 Racing Intake Manifold Spacer is perfect for car enthusiasts who want to boost their engine’s power. It’s easy to install and works specifically for B/K-Series engines.	View on Amazon (paid link)
BBK 1506 3/8″ Phenolic Intake Manifold Spacer Kit for GT-40 and Cobra EFI Intake Manifolds	This BBK 1506 Intake Manifold Spacer Kit is perfect for car enthusiasts who want to boost their engine’s performance. It’s ideal for those with GT-40 or Cobra EFI intake manifolds looking for cooler intake temperatures and better airflow.	View on Amazon (paid link)
ICT Billet Intake Manifold Plenum Spacer Riser Compatible with 4.6L 4V Billet Cobra Mustang Mach 551318	This intake manifold plenum spacer riser is perfect for Ford Mustang owners with a 4.6L 4V engine. It’s ideal for those looking to boost performance with a simple upgrade.	View on Amazon (paid link)
SR Performance Intake Spacer Compatible for 96-04 Mustang GT	This SR Performance Intake Spacer is perfect for Mustang GT owners who want more power and better performance. It’s easy to install and fits 1996 to 2004 4.6 GT Mustangs.	View on Amazon (paid link)

Detailed Reviews

Discover the top 10 Intake Plenum Spacers designed to boost engine performance and improve efficiency. Each product is expert-reviewed and customer-approved, offering durability, easy installation, and great value. Find the perfect upgrade for your vehicle and take your driving experience to the next level.

1. Woosphy 5/8″ Intake Manifold Thermal Shield Plenum Spacer Replacement for Nissan 350Z Infiniti G35 3.5L V6 2002-2009

The Woosphy 5/8″ Intake Manifold Thermal Shield Plenum Spacer is a perfect replacement for specific Nissan and Infiniti models. It fits Nissan 350Z coupes and roadsters, and Infiniti G35 sedans and coupes with non-RevUp engines.

This spacer is 5/8″ thick and works for 2002-2009 models. It’s easy to install and improves engine performance. Upgrade your vehicle today!

Pros	Cons
Fits Nissan 350Z, Infiniti G35 perfectly. 5/8″ thickness boosts engine performance. Easy replacement for non-RevUp engines. Durable design for long-lasting use.	Not for RevUp engines, check compatibility before buying. No installation tools included, extra purchase needed. Limited thickness, may not fit all modifications.

Perfect For:

This Woosphy 5/8″ Intake Manifold Thermal Shield Plenum Spacer is perfect for Nissan 350Z and Infiniti G35 owners with non RevUp engines. It fits 2002-2009 models, keeping your engine cooler and running smoothly.

Ready to Purchase?

View Price on Amazon (paid link)

2. Thermal Shield Intake Plenum Spacer BXIM-40201 Compatible with Nissan 350Z / Infiniti G35 5/16 Inch Intake Manifold Plenum Spacer BXIM-40201-G2

The Thermal Shield Intake Plenum Spacer BXIM-40201 is a high-quality upgrade for your Nissan 350Z or Infiniti G35. It’s made from thermal polymer, which keeps your engine cooler and boosts performance.

This 5/16-inch spacer is easy to install and fits perfectly as a direct replacement. It’s affordable and built to last, giving you long-term value.

Increase manifold capacity, lower intake air temperature, and improve engine efficiency. Compatible with 2003-2005 models. Verified fit before purchase.

Pros	Cons
Cools intake air for better engine performance. Easy to install, direct replacement with long life. High-quality thermal polymer blocks heat effectively. Affordable upgrade, boosts manifold capacity instantly.	Not universal, only fits specific Nissan/Infiniti models. No tools included, requires separate purchase for installation. Thickness fixed, no option for custom sizing.

Perfect For:

This product is perfect for car enthusiasts and owners of Nissan 350Z or Infiniti G35 models from 2003-2005. It’s ideal for those looking to improve their engine’s performance with an easy upgrade.

Ready to Purchase?

View Price on Amazon (paid link)

3. 40201 BXIM-40201-G2 Blox Racing 516 Inch VQ35 Thermal Shield Intake Plenum Spacer Compatible with Nissa-n 350Z Infinit-i G35

The Blox Racing 516 Inch VQ35 Thermal Shield Intake Plenum Spacer is a high-quality upgrade for your vehicle. It is compatible with Nissan 350Z and Infiniti G35 models from 2002 to 2008. This product is designed to improve performance and reliability.

Easy installation is possible with the help of online video guides. Durable materials ensure a long-lasting solution for your engine.

OEM: BXIM-40201 is the part number for this intake plenum spacer. It is stored in warehouses and may show minor signs of handling. Contact us if you have specific appearance requirements.

Pros	Cons
Boosts engine power with high-quality materials for durability. Easy installation with online video guides for quick setup. Fits perfectly with Nissan 350Z and Infiniti G35 models. Protects components with a thermal shield design.	No RevUp engine compatibility limits fitment. May show handling marks from transportation. Requires lubrication maintenance for optimal performance.

Perfect For:

This Blox Racing Intake Plenum Spacer is perfect for car enthusiasts who want to boost their Nissan 350Z or Infiniti G35’s performance. It’s easy to install and built to last, making it ideal for DIY upgrades.

Ready to Purchase?

View Price on Amazon (paid link)

4. AUTOVIC Intake Plenum Spacer 1’’ Billet Aluminum Compatible with Ford F-250 F-350 5.8L Engines 1988-1997 for Felpro MS 94176

The AUTOVIC Intake Plenum Spacer is a high-quality upgrade for your Ford F-250 or F-350. It fits 5.8L engines from 1988 to 1997.

This spacer boosts engine performance by increasing the volume between the plenum and intake runner. It’s made from billet aluminum, ensuring strength and durability.

The package includes a 1-inch spacer, but gaskets are not included. If you need installation help, contact us for support.

Pros	Cons
Boosts engine power with increased plenum-runner volume. Durable billet aluminum ensures long-lasting performance. Perfect fit for Ford F-250/F-350 5.8L engines (1988-1997). Easy installation with support available for any issues.	No gaskets included, so you’ll need to buy them separately. Installation might be tricky without professional help. Limited compatibility with only specific Ford models and years.

Perfect For:

This AUTOVIC Intake Plenum Spacer is perfect for Ford F-250 and F-350 owners with 5.8L engines from 1988 to 1997. It’s ideal for those looking to boost engine performance with a durable, billet aluminum spacer.

Ready to Purchase?

View Price on Amazon (paid link)

5. Skunk2 Racing 307-07-0400 Composite V2.0 Plenum Spacer for Nissan VQ Engines

The Skunk2 Racing Plenum Spacer boosts your Nissan VQ engine’s power. It’s a simple upgrade with big benefits.

This composite spacer is thicker, which lowers intake temps and improves airflow. You’ll feel the extra power and quicker throttle response. It’s an easy install with all parts included.

Get up to 10hp more and better fuel efficiency. The aerospace material keeps things cool. It’s a great fit for 3.5 VL VQ35 engines.

Pros	Cons
Boosts engine power with up to 10hp gain. Cools intake temps for smoother performance. Easy install, includes all hardware. Saves fuel, over 2mpg improvement.	Not for all engines, only fits 3.5 VL VQ35 types. Gasket thickness may need extra care during install. Pricey upgrade for modest gains like 10hp.

Perfect For:

This Skunk2 Racing Plenum Spacer is perfect for Nissan VQ engine owners who want more power and better fuel efficiency. It’s easy to install and works great for 3.5 VL VQ35 engines.

Ready to Purchase?

View Price on Amazon (paid link)

6. XYZIL 5/16″ Thermal Shield Intake Plenum Spacer BXIM-40201 Compatible with Nissan 350Z Coupe 2002-2008 Roadster 2003-2009 Compatible with Infiniti G35 Sedan 2003-2006 Manifold BXIM40201 BXIM-40201-G2

The XYZIL 5/16″ Thermal Shield Intake Plenum Spacer is a high-quality upgrade for your vehicle. It’s compatible with Nissan 350Z and Infiniti G35 models, ensuring a perfect fit for specific years and engines.

This intake manifold spacer boosts engine performance by increasing manifold volume and cooling intake air. It’s easy to install and built to last.

Pros	Cons
Boosts engine power with increased manifold volume. Cools intake air for better performance. Fits Nissan 350Z and Infiniti G35 perfectly. Easy install, no hassle, great results.	Not for RevUp engines, check compatibility before buying. No installation tools included, extra cost possible. Thickness fixed at 5/16″, no customization options.

Perfect For:

This XYZIL Thermal Shield Intake Plenum Spacer is perfect for car enthusiasts who want to boost their engine’s performance. It’s ideal for Nissan 350Z and Infiniti G35 owners looking to lower intake air temperatures and improve power.

Ready to Purchase?

View Price on Amazon (paid link)

7. Skunk2 Racing 907-05-9101 Ultra B/K-Series Black Street Intake Manifold Spacer (+.5 Liter)

The Skunk2 Racing Ultra B/K-Series Intake Manifold Spacer boosts your engine’s internal volume for better performance. Made from 50L billet aluminum, it’s strong and lightweight. It comes with longer socket head hardware and gaskets for easy installation.

This spacer is anodized to resist corrosion, ensuring long-lasting use. It’s vehicle-specific, so it fits perfectly with your setup.

Pros	Cons
Boosts engine power with a +0.5 liter volume increase. Durable 50L billet aluminum resists wear and tear. Corrosion-resistant anodized finish ensures long-lasting performance. Includes gaskets and hardware for easy installation.	Vehicle-specific fit limits compatibility with other models. No instructions included, may require expert installation. Anodized finish may wear off over time with use.

Perfect For:

This Skunk2 Racing Intake Manifold Spacer is perfect for car enthusiasts who want to boost their engine’s power. It’s easy to install and works specifically for B/K-Series engines.

Ready to Purchase?

View Price on Amazon (paid link)

8. BBK 1506 3/8″ Phenolic Intake Manifold Spacer Kit for GT-40 and Cobra EFI Intake Manifolds

BBK is a top US brand for car upgrades. This intake manifold spacer kit is made in America.

It uses phenolic material to lower intake temps. Cooler air means better engine power.

Easy install, fits GT-40 and Cobra EFI, includes all parts.

Pros	Cons
Cools intake air for better engine performance. Reduces heat transfer with phenolic material. Easy install with new hardware and gaskets. More clearance for larger valve covers and rockers.	No performance gains guaranteed for all engines. Requires additional tools for installation. May not fit all intake manifolds.

Perfect For:

This BBK 1506 Intake Manifold Spacer Kit is perfect for car enthusiasts who want to boost their engine’s performance. It’s ideal for those with GT-40 or Cobra EFI intake manifolds looking for cooler intake temperatures and better airflow.

Ready to Purchase?

View Price on Amazon (paid link)

9. ICT Billet Intake Manifold Plenum Spacer Riser Compatible with 4.6L 4V Billet Cobra Mustang Mach 551318

The ICT Billet Intake Manifold Plenum Spacer Riser boosts your engine’s power. It fits 4.6L 4V Billet Cobra Mustang Mach 551318 models. This part is made in the USA.

It increases plenum volume for better performance. The spacer is machined from heavy-duty billet aluminum. It comes with all needed bolts for easy install.

This high-quality part is built to last. It’s compatible with Ford Mustang 4.6L engines. Upgrade your ride with ICT Billet’s precision engineering.

Pros	Cons
Boosts engine power with increased plenum volume. Crafted from durable aerospace-grade billet aluminum. Perfect fit for Ford Mustang 4.6L engines. Easy install with included spacer and bolts.	No instructions included, might need expert help. Not compatible with all Mustang models, check before buying. Higher price point, budget carefully for this upgrade.

Perfect For:

This intake manifold plenum spacer riser is perfect for Ford Mustang owners with a 4.6L 4V engine. It’s ideal for those looking to boost performance with a simple upgrade.

Ready to Purchase?

View Price on Amazon (paid link)

10. SR Performance Intake Spacer Compatible for 96-04 Mustang GT

The SR Performance Intake Spacer is a simple upgrade for your Mustang GT. It’s designed to boost power and improve performance.

Made from solid aluminum, it’s durable and reliable. Fits 1996 to 2004 4.6 GT Mustangs perfectly. Installation is quick and easy.

This spacer increases horsepower and torque, giving your Mustang a noticeable boost. It’s a great choice for affordable performance upgrades.

Pros	Cons
Boosts horsepower and torque for a stronger Mustang. Durable aluminum build ensures long-lasting performance. Easy to install, no hassle or special tools needed. Perfect fit for 1996-2004 Mustang GT models.	Not for all Mustangs, only fits 1996-2004 GT models. Basic design, lacks extra features like heat shielding. Limited gains, may not noticeably boost performance for all users.

Perfect For:

This SR Performance Intake Spacer is perfect for Mustang GT owners who want more power and better performance. It’s easy to install and fits 1996 to 2004 4.6 GT Mustangs.

Ready to Purchase?

View Price on Amazon (paid link)

Buying Guide

Intake plenum spacers are a simple upgrade that can boost your engine’s power. They work by increasing airflow and cooling intake air, giving you better performance. Whether you’re a car enthusiast or just want more power, these spacers deliver noticeable results.

Choosing the right intake plenum spacer can feel overwhelming, but we’ve made it easy. Here’s what to consider when buying:

Compatibility: Make sure the spacer fits your specific make and model. Check the year, engine type, and part number to avoid mistakes.
Material: Look for durable materials like billet aluminum or thermal polymer. They last longer and handle heat better.
Thickness: The spacer’s thickness affects airflow and cooling. Thicker spacers often lower intake temps but check what works best for your engine.
Ease of Installation: Choose a spacer that’s easy to install. Some come with gaskets and hardware, while others may need extra parts.
Performance Gains: Consider what you want: more horsepower, better throttle response, or improved fuel efficiency. Read reviews to see real results.
Price: Balance quality and cost. A high-quality spacer may cost more but offers long-term value.

With these factors in mind, you’ll find the perfect intake plenum spacer to upgrade your ride and feel the difference on the road.