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Eligible for Return, Refund or Replacement within 30 days of receipt
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Spectre Performance SPE-9849 4" Single Air Intake Plenum

4.8 4.8 out of 5 stars 383 ratings
$119.99
FREE Returns
Available at a lower price from other sellers that may not offer free Prime shipping.
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Purchase options and add-ons

Brand Spectre
Shape Round
Installation Type Bolt-On
Finish Type Polished

About this item

  • Fit Type: Vehicle Specific
  • Standard height plenum with a single inlet
  • Fabricated from high quality polished cast aluminum
› See more product details

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Top Brand: Spectre

Highly Rated
100K+ customers rate items from this brand highly
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From the manufacturer

About Spectre Performance

Since 1983 Spectre has designed and offered unique and innovative parts and components to fuel your car or truck obsession. Our products are designed and tested to perform and last. We have a state of the art chassis dynamometer with diagnostic and emissions testing and performance optimizing capabilities, as well as a top of the line Super-Flow flow bench with airflow, pressure, and velocity measuring capabilities in both intake and exhaust modes, and also a whole bunch of expensive scientific laboratory type equipment, all of which are used to develop Quality Products that Perform.

Air Filter Types

Air Filters by Vehicle

Clamp-on Universal Air Filters

Breather Air Filters

Round Air Filters

Spectre Performance Air Filters provide exceptional airflow for increased performance. You can reduce the airflow restriction without sacrificing engine protection with a Spectre HPR air filter.

Oval Air Filters

Triangular Air Filters

Inline Cone Air Filters

Engine Accessories

Spectre's Engine Accessories are manufactured using the highest quality materials and are designed to perform as good as they look. Accessories include multiple brackets and latches, as well as GM, Ford and Chrysler chrome engine kits, master cylinder covers, power steering dipsticks, engine oil pans and dipsticks, pulleys, throttle body spacers, timing chain covers and GM, Ford and Chrysler valve covers. Engineered for optimum fit and function Spectre's accessories are the perfect compliment to your hard work.

Air Intake Components

Spectre offers air intake components for DIY car enthusiasts so they can design and build a cold air intake for their modified car or truck. If you need to design and build a custom one-off air intake system, Spectre has you covered. Check out our air ducting components, air intake tubes, brackets, mounting plates, air intake hoses, coupler and hose clamps, couplers, reducers, silicone funnels and mass air flow sensor accessories. It's easy to build your own air intake with Spectre air intake components.

Spectre Air Intake Installation

Spectre application specific air intake systems are designed to be a direct fit bolt-on replacement to the stock intake system so installation can be quick and easy. Spectre cold air intake systems come with detailed installation instructions and are easy to install with common hand tools.

Product Description

Spectre Performance SPE-9849 4" Single Air Intake Plenum

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Spectre Performance SPE-9849 4" Single Air Intake Plenum

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What's in the box

  • PLENUM; SINGLE

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    Customer reviews

    4.8 out of 5 stars
    4.8 out of 5
    383 global ratings

    Customers say

    Customers like the quality, fit, appearance, value, and performance of the engine exhaust pipe. They mention that it's very well built, sits firmly on the carb airhorn, and works well on a blow through application.

    AI-generated from the text of customer reviews

    25 customers mention21 positive4 negative

    Customers like the quality of the engine exhaust pipe. They say it's well-built, heavy duty, and easy to install. Customers also mention that it looks great and has no imperfections.

    "...unbeatable price point, lowest vertical clearance I've foundan built like a tank.i would definitely purchase again an was delivered in 3 days!" Read more

    "Was surprised at how well this was made. Heavy duty cast aluminum not some cheap folded tin material...." Read more

    "LOTS of air for my big block chevy very well made heavy ez to install" Read more

    "...The product is great and a good piece. Will work as intended. But I unfortunately was unable to use do to lack of hood clearance...." Read more

    14 customers mention12 positive2 negative

    Customers like the fit of the engine exhaust pipe. They mention that it fits and sits fine, and sit firmly on the carb airhorn.

    "...This piece is beautiful and sits firmly on the carb airhorn. Superior piece over the factory stamped steel air cleaner housing." Read more

    "Fits great and seems to work well on a blow through application...." Read more

    "Clean chrome look, and fit nicely around the top of my Edelbrock 1906 without any issues...." Read more

    "...Fitment was excellent, and the product performed as expected. It will also fit most 4 bbl carburetors, which I may use it for later...." Read more

    12 customers mention12 positive0 negative

    Customers are satisfied with the appearance of the engine exhaust pipe. They mention that it looks good, is well built, and designed. Some say that it has a good finish and doesn't have any bad flashing.

    "...This piece is beautiful and sits firmly on the carb airhorn. Superior piece over the factory stamped steel air cleaner housing." Read more

    "...Pretty good looking to compliment the rest of the chrome ducting I had fabbed up previously...." Read more

    "It has a good finish and didn't have any bad flashing on it.Mine only required a minor modification...." Read more

    "Clean chrome look, and fit nicely around the top of my Edelbrock 1906 without any issues...." Read more

    8 customers mention8 positive0 negative

    Customers appreciate the value of the engine exhaust pipe. They mention that it's of very high quality for the price, and works as intended.

    "Product as advertised unbeatable price point, lowest vertical clearance I've foundan built like a tank.i would definitely purchase again an was..." Read more

    "...a little on the expensive side considering it's purpose, but worth the money in the end." Read more

    "...The product is great and a good piece. Will work as intended. But I unfortunately was unable to use do to lack of hood clearance...." Read more

    "...Simple, effective setup. And this plenum is of very high quality for the price. I️ have no regrets." Read more

    7 customers mention7 positive0 negative

    Customers are satisfied with the performance of the engine exhaust pipe. They mention that it works well on a blow through application, and for a N/A engine. Some say that it fits great and works with no hassel.

    "Fits great and seems to work well on a blow through application...." Read more

    "...Fitment was excellent, and the product performed as expected. It will also fit most 4 bbl carburetors, which I may use it for later...." Read more

    "These work well for a N/A engine , but for a boosted application after about 6 lbs they did not work very well too much turbulence ...." Read more

    "works perfect" Read more

    4 customers mention4 positive0 negative

    Customers find the installation process of the engine exhaust pipe to be simple and effective. They mention that it's well-built and designed.

    "...Simple, effective setup. And this plenum is of very high quality for the price. I️ have no regrets." Read more

    "Was very easy to install. Great workmanship . Would recommend buying a gasket ring to seal tightly, doesn't come with part ." Read more

    "Great product great quality easy to install" Read more

    "The product is very well built and designed and super easy to install. Solid 5 out of 5thanks amazon" Read more

    Just the Carburetor hat I was looking for.
    5 Stars
    Just the Carburetor hat I was looking for.
    Cast aluminum construction, so you will need a Dremel to cut the pieces of casting flash off of the ID of the Carb hat.Pretty good looking to compliment the rest of the chrome ducting I had fabbed up previously.Still a bit on the expensive side, considering the slop, the hat would slide around even on top of a carburetor mounting flange of 5 1/8.When bolted down, looks good and no shimmy.
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    Top reviews from the United States

    Jon d
    5.0 out of 5 stars Lowest clearance vertically,great price
    Reviewed in the United States on January 25, 2024
    Verified Purchase
    Product as advertised unbeatable price point, lowest vertical clearance I've foundan built like a tank.i would definitely purchase again an was delivered in 3 days!
    Helpful
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    Bob C
    5.0 out of 5 stars Impressive
    Reviewed in the United States on July 27, 2023
    Verified Purchase
    First, if not for Spectre, I wouldn't have any way to adapt my carburetor to any air intake plumbing. This piece is beautiful and sits firmly on the carb airhorn. Superior piece over the factory stamped steel air cleaner housing.
    One person found this helpful
    Helpful
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    Chris H.
    5.0 out of 5 stars Spectre Performance Single Air Intake Plenum
    Reviewed in the United States on January 17, 2024
    Verified Purchase
    Was surprised at how well this was made. Heavy duty cast aluminum not some cheap folded tin material.
    It will work out great for me to add a cold air intake system on my class A RV.
    Helpful
     Report
    Jonathan Zamora
    5.0 out of 5 stars 5⭐️
    Reviewed in the United States on April 28, 2024
    Verified Purchase
    Looks great and perfect fit for my S15, 1987, 2.8 6c
    Helpful
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    Andrew Hall
    4.0 out of 5 stars Ok for the price.
    Reviewed in the United States on May 21, 2020
    Verified Purchase
    Fits great and seems to work well on a blow through application. Gave it 4 stars because the flange where it is supposed to seal to the carb was machined uneven, had to dress with a file. After that it works fine. Would have traded that for the half polish job they put on it, I'd rather it as cast anyway.
    Helpful
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    sam
    5.0 out of 5 stars Just the Carburetor hat I was looking for.
    Reviewed in the United States on August 16, 2023
    Verified Purchase
    Cast aluminum construction, so you will need a Dremel to cut the pieces of casting flash off of the ID of the Carb hat.

    Pretty good looking to compliment the rest of the chrome ducting I had fabbed up previously.

    Still a bit on the expensive side, considering the slop, the hat would slide around even on top of a carburetor mounting flange of 5 1/8.

    When bolted down, looks good and no shimmy.
    Customer image
    sam
    5.0 out of 5 stars Just the Carburetor hat I was looking for.
    Reviewed in the United States on August 16, 2023
    Cast aluminum construction, so you will need a Dremel to cut the pieces of casting flash off of the ID of the Carb hat.

    Pretty good looking to compliment the rest of the chrome ducting I had fabbed up previously.

    Still a bit on the expensive side, considering the slop, the hat would slide around even on top of a carburetor mounting flange of 5 1/8.

    When bolted down, looks good and no shimmy.
    Images in this review
    Customer image Customer image
    Customer imageCustomer image
    One person found this helpful
    Helpful
     Report
    NIKOS R.
    5.0 out of 5 stars it comes to me open box
    Reviewed in the United States on March 21, 2024
    Verified Purchase
    it comes to me open box
    Helpful
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    Brian, R.S.
    5.0 out of 5 stars APPEARS TO BE RIGHT FOR A STANDARD 4BBL CARBURETOR OR TBI.
    Reviewed in the United States on January 29, 2024
    Verified Purchase
    THE DESCRIPTION SAYS ITS NOT FOR BOOST/ FORCED INDUCTION. BUT THAT IS EXACTLY WHAT I WILL BE USING IT FOR. TURBO CHARGER ON A I-6 ENGINE. SEEMS TO BE PLENTY WELL MADE FOR THAT.

    I HAVE MADE MY OWN PREVIOUSLY FROM WELDED SHEETMETAL BUT THIS SAVES ME A TON OF TIME.
    Helpful
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    Top reviews from other countries

    Translate all reviews to English
    TimB
    5.0 out of 5 stars Works perfectly for designed cold air intake
    Reviewed in Canada on February 5, 2024
    Verified Purchase
    I cannot complain
    Customer image
    TimB
    5.0 out of 5 stars Works perfectly for designed cold air intake
    Reviewed in Canada on February 5, 2024
    I cannot complain
    Images in this review
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    Customer image
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    David Esteban Alonso Razo
    5.0 out of 5 stars Perfecto
    Reviewed in Mexico on August 4, 2023
    Verified Purchase
    funciona perfecto , le puse una manguera de 4" y ya puede instalar un filtro de alto flujo en otra parte del coche, no tuve problemas con la altura en un malibu 81, apesar de tener un plato adaptador para un carburador street demon.
    Report
    Darrin
    5.0 out of 5 stars Spectre plenum
    Reviewed in Australia on May 22, 2023
    Verified Purchase
    Item is as described. It's a brilliant item unfortunately didn't fit my purpose. My fault. I didn't measure properly. I would definitely do business with Amazon again. Fast sending and items are as described.
    Report
    vic
    5.0 out of 5 stars Good quality
    Reviewed in Canada on August 10, 2023
    Verified Purchase
    Product came and fit
    Report
    Gustavo
    5.0 out of 5 stars Excelente calidad, sólido y totalmente funcional
    Reviewed in Mexico on October 7, 2022
    Verified Purchase
    The media could not be loaded.
     La pieza es de aluminio sólido, muy buen acabado, pulido y venía bien empacada. Una vez ya instalada se ve magnífica y sienta perfecto en la base del carburador, en este caso uso un Holley 4412 de 500cfm. Aunque es muy probable que se requiera algún tubo/acoples adicionales para alejar más el filtro de aire. En mi caso tuve que hacer esto último porque el cofre no cerraba bien porque pegaba en el diámetro del filtro, sin embargo ya con la extensión quedó perfecto. Es una pieza bastante recomendable para los vehículos carburado ya que originalmente con el filtro redondo absorben aire "caliente" de los manifolds y en cambio usando esto permite una captación de aire más fresco. Definitivamente sí la recomiendo. Saludos
    Customer image
    Gustavo
    5.0 out of 5 stars Excelente calidad, sólido y totalmente funcional
    Reviewed in Mexico on October 7, 2022
    La pieza es de aluminio sólido, muy buen acabado, pulido y venía bien empacada. Una vez ya instalada se ve magnífica y sienta perfecto en la base del carburador, en este caso uso un Holley 4412 de 500cfm. Aunque es muy probable que se requiera algún tubo/acoples adicionales para alejar más el filtro de aire. En mi caso tuve que hacer esto último porque el cofre no cerraba bien porque pegaba en el diámetro del filtro, sin embargo ya con la extensión quedó perfecto. Es una pieza bastante recomendable para los vehículos carburado ya que originalmente con el filtro redondo absorben aire "caliente" de los manifolds y en cambio usando esto permite una captación de aire más fresco. Definitivamente sí la recomiendo. Saludos
    Images in this review
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    One person found this helpful
     Report