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Spectre Performance 9751 Black 4" Air Duct Hose

4.4 4.4 out of 5 stars 376 ratings

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Brand Spectre
Material Rubber
Product Dimensions 41"L x 4"W
Item Weight 0.01 Ounces

About this item

  • Memory-flex design helps retain its position and bends
  • Helpful for creating a custom intake system
  • Can be used to bring cold air into the engine
  • 41 inches of ducting and two threads on rubber boots
See more product details

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$39.99
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Spectre Performance 9751 Black 4" Air Duct Hose
Spectre Performance 9751 Black 4" Air Duct Hose
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Price$39.99$21.99$9.99$16.99$19.99$23.99
Delivery
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Get it as soon as Sunday, Mar 31
Customer Ratings
Value for money
4.3
4.2
4.6
4.8
4.4
4.4
Durability
4.1
4.1
4.8
4.8
5.0
4.3
Sturdiness
4.0
4.2
4.5
4.8
4.5
4.3
Easy to install
4.6
4.6
5.0
4.4
Sold By
Amazon.com
Guthin556
Hydrowe
Ucreative
AC Infinity
Amazon.com
material
Rubber
Silicone
Aluminum, Stainless Steel
Pvc
size
4"(103mm)
4in 8ft
4.0"(102mm) with Clamps
weight
0.01 ounces
0.01 ounces
0.01 ounces

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

This Spectre air duct hose attaches directly to a 4 inch air box inlet, plenum, intake tube or mounting plate to bring cool air into the engine. All Spectre air intake components are designed and built using high quality materials and engineered for optimum fit and function.

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 9751 Black 4" Air Duct Hose


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Customer reviews

4.5 out of 5 stars
4.5 out of 5
377 global ratings

Customers say

Customers like the appearance, quality and fit of the hardware tubing. For example, they mention it looks nice, it's strong and it conforms to the shape you want. Customers are also impresseded with the ease of installation, and performance. That said, some complain about the seal and ease of connection.

AI-generated from the text of customer reviews

17 customers mention14 positive3 negative

Customers like the quality of the hardware tubing. They say it has good construction, strong materials, and holds shape no problem. Customers also appreciate the steel wire spiral for reinforcement.

"...The strength of this product is quite apparent. You can form an S with the hose and it will retain its form while you hold it up...." Read more

"Good construction/materials for intended purpose" Read more

"...Cut to length, pipe is plenty long. It has a steel wire spiral for reinforcement, it’s not just plastic." Read more

"The ends screwed on really easy. It stretched very easy and held shape no problem...." Read more

13 customers mention13 positive0 negative

Customers are satisfied with the performance of the ducting. For example, they mention it works great, it's perfect on the air cleaner, and that it'll do the job. That said, some complain that it isn't very strong.

"I installed this hose in my car and it works great!" Read more

"Not very strong but good enough" Read more

"I used this intake for about a year. It works okay however the tubing wall is somewhat thin and the corrugated texture is not ideal for airflow...." Read more

"...They work really well, just hoping this isn't going to be a every two-year thing." Read more

5 customers mention5 positive0 negative

Customers like the fit of the hardware tubing. They mention that it holds shape well, and conforms to the shape they want.

"Perfect fit for my 2004 Silverado 2500HD Duramax with a larger turbo inlet." Read more

"...for years for the heater vent pipe for my midget 1500 and this fit perfectly...." Read more

"...Its bendable and conforms to the shape you want, but that's about the only redeeming quality...." Read more

"holds shape well and dimensions were good" Read more

5 customers mention5 positive0 negative

Customers find the hardware tubing very flexible and easy to work with. They mention that it's bendable and conforms to the shape they want. They also say that it expands and bends around obstructions. Overall, customers are satisfied with the product's flexibility.

"Great 4-in intake pipe it's flexible and the ends are nice pieces of rubber they fit great only thing missing are the two 4-in clamps if that was..." Read more

"The ends screwed on really easy. It stretched very easy and held shape no problem...." Read more

"...Easy to expand and bend around obstructions." Read more

"This product shouldn't be marketed as an intake hose. Its bendable and conforms to the shape you want, but that's about the only redeeming quality...." Read more

4 customers mention4 positive0 negative

Customers are satisfied with the appearance of the hardware tubing. For example, they mention it looks much better and is built to last.

"very nice" Read more

"...Nice and worth the cost to me." Read more

"...Looks much better too!" Read more

"Really nice product, build to do what it should and last..." Read more

4 customers mention4 positive0 negative

Customers find the hardware tubing easy to install. They mention that it's flexible and easy to work with. Customers also say that the ends screw on really easy.

"The ends screwed on really easy. It stretched very easy and held shape no problem...." Read more

"Very easy to install and they hold their shape well. Even in my boucy as heck Dodge, they hold up very well...." Read more

"Easy way to hook up cai to my 90mm throttle boby!" Read more

"Very flexible and easy to work with..." Read more

6 customers mention0 positive6 negative

Customers have issues with the ease of connection. They mention that the rubber ends are threaded in the wrong direction, and are difficult to thread on the hose. The rubber coupling is a little hard to get onto the pipe itself, but slides right off. The threads of the coupler don't match the Hose.

"...Ends are a bit difficult to thread on the hose but once correctly installed provide a sealed connection...." Read more

"ok air duct hose rubber ends not so much video really lame I put a 3.5 coupler inside hose to make it more sturdy where you clamp it, other wise..." Read more

"...The rubber coupling is a little hard to get onto the pipe itself, but slides right off the heater for easy removal (which happens often)...." Read more

"...But the rubber bits where somewhat of a pain in the but to put on." Read more

4 customers mention0 positive4 negative

Customers are dissatisfied with the seal of the hardware tubing. They mention that it won't be right, there's no way to effectively apply a sealant, and the screw on to the hose leaks air.

"...What bothered me the most however is the inability to create a good positive seal at the ends...." Read more

"...The ends with the screw on to the hose leaks air. Clampingthe ends didn't work for me. Cheap hose. Get what you pay for." Read more

"...Even if you manage to mangle them together, the seal won't be right. Hose will probably work fine for you as long as you don't need the couplers." Read more

"...The ends just press on, no positive seal and no way to effectively apply a sealant...." Read more

High quality hose and exactly what I needed.
5 Stars
High quality hose and exactly what I needed.
High quality flex tubing. NOT dryer hose or remotely similar to it as a reviewer stated. Ends are a bit difficult to thread on the hose but once correctly installed provide a sealed connection. Add hose clamps to fasten it to your intake and whatever you are pulling air from and you are done. The strength of this product is quite apparent. You can form an S with the hose and it will retain its form while you hold it up. This hose was 41" stretched out before I divided it. I needed 2 hoses so I cut this into two and bought an extra set of couplers. Nice and worth the cost to me.
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Top reviews from the United States

Reviewed in the United States on May 2, 2017
Customer image
5.0 out of 5 stars High quality hose and exactly what I needed.
Reviewed in the United States on May 2, 2017
High quality flex tubing. NOT dryer hose or remotely similar to it as a reviewer stated. Ends are a bit difficult to thread on the hose but once correctly installed provide a sealed connection. Add hose clamps to fasten it to your intake and whatever you are pulling air from and you are done. The strength of this product is quite apparent. You can form an S with the hose and it will retain its form while you hold it up. This hose was 41" stretched out before I divided it. I needed 2 hoses so I cut this into two and bought an extra set of couplers. Nice and worth the cost to me.
Images in this review
Customer image
Customer image
3 people found this helpful
Report
Reviewed in the United States on February 6, 2024
Reviewed in the United States on January 17, 2023
Reviewed in the United States on February 1, 2024
Reviewed in the United States on September 14, 2019
Customer image
5.0 out of 5 stars Fits my MG Midget 1500
Reviewed in the United States on September 14, 2019
I’ve been looking for years for the heater vent pipe for my midget 1500 and this fit perfectly. The rubber coupling is a little hard to get onto the pipe itself, but slides right off the heater for easy removal (which happens often). Cut to length, pipe is plenty long. It has a steel wire spiral for reinforcement, it’s not just plastic.
Images in this review
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Customer image
One person found this helpful
Report
Reviewed in the United States on September 2, 2023
Reviewed in the United States on March 13, 2024
Reviewed in the United States on June 23, 2020

Top reviews from other countries

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Figros Servicio
5.0 out of 5 stars The flexibility of use.
Reviewed in Canada on January 12, 2023
Steven
5.0 out of 5 stars Super
Reviewed in Canada on October 20, 2021
Carolle Reimer
5.0 out of 5 stars good quality
Reviewed in Canada on June 29, 2022
wayne472
4.0 out of 5 stars 14in intake tube
Reviewed in Canada on August 25, 2023
Customer image
wayne472
4.0 out of 5 stars 14in intake tube
Reviewed in Canada on August 25, 2023
Works as it should.. little of a pain at times getting rubber boots on
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chance
5.0 out of 5 stars Very quick shipping
Reviewed in Canada on March 2, 2019