Spectre Performance 9751 Black 4 Inch Air Duct Hose With Memory Flex Design And Dual Threaded Rubber Boots For Custom Cold Air Intake Setups 41 Inches
Why you'll like it
- Custom Airflow Routing — Features 41 inches of flexible ducting to easily route cold air around tight engine bay obstacles and custom setups.
- Shape Retention — Built with a memory-flex design that holds rigid angles securely without kinking, flopping, or losing position.
- Secure Connections — Equipped with dual-threaded rubber boots that provide airtight, vibration-resistant attachment to airbox inlets and plenums.
- Durable Construction — Made from tough black polypropylene and heavy-duty rubber to withstand high-heat engine environments.
Product details
Description
Upgrade your vehicle performance with the Spectre Performance 4 Inch Air Duct Hose, engineered to efficiently channel ambient cold air directly into your engine airbox or custom intake system. Built for automotive enthusiasts and fabricators, this rugged 41-inch ducting component features an advanced memory-flex structure that securely holds custom angles and complex bends without kinking or collapsing under pressure.
Constructed from heavy-duty black polypropylene, it provides exceptional durability and heat resistance within demanding engine bay environments. The integrated dual-threaded rubber boots ensure tight, vibration-resistant, and airtight connections to plenums, adapters, and mounting plates.
Whether you are building a custom cold air intake setup for a project car, routing airflow around tight mechanical obstacles, or adapting it for alternative hobbyist enclosures, this reliable USA-imported hose delivers professional-grade performance and dependable airflow management.
How to use
- Measure the required distance in your engine bay and cut or extend the ducting as needed.
- Attach the threaded rubber boots securely to your airbox inlet, plenum, or custom adapter plate, twisting to lock the connection in place.
- Bend and shape the memory-flex hose to your desired routing path, ensuring it is clear of moving engine components and high-heat exhaust manifolds before securing with clamps if necessary.
Ingredients
Polypropylene tubing, PVC couplers, reinforced rubber boots, metal internal support wire.
As printed by the brand. Check the pack label if you have an allergy.
Specifications
| Brand | Spectre |
|---|---|
| UPC | 089601975108 |
| Ships from | USA (sourced directly), checked in Navi Mumbai |
| Sold by | Dropy.in |
Ratings & reviews
From our customers
Top reviews first: highest rated, with photos first
- Kulwant M.5 ★
mast item kaam krta hai
bas fitting ke liye lagaya tha, dual threaded rubber boots se airtight connection mil gaya aur engine temperature manage rhta hai.
- Jayakumar L.5 ★
kamalaat item aahe
mi mazya project car sathi ha air duct hose ghetla hota. engine box madhe cold air channel karnyasathi ha khup useful tharla. tyacha memory-flex design mule ha bend krun thevne sopa ahe ani kinky hot nahi. black polypropylene material quality pan chagli vatli, long drive la kuthla tras nahi zala.
- Balaji5 ★
badiya hose hai
Car ki trip pe jaane se pehle custom intake setup ke liye ye mangvaya tha, packing theek thi aur delivery bhi time pe mil gayi. 41 inches ki length ekdum barabar rhi mere project ke liye, aur memory-flex design ki wajah se isko fold ya bend krna kafi easy rha bina kisi kinking ke. Boot connections bhi tight baithe.
- Prasanta K.4 ★
Good quality for custom project
Got this for my son's college project car after he spent weeks trying to route airflow properly around tight mechanical spots in the engine bay. The 4-inch diameter handles high-volume airflow well and the polypropylene material feels quite rugged for everyday engine heat. Only minor issue was that twisting it onto tight threads took a bit of extra patience, but overall it holds its custom shape nicely without collapsing.
FAQs
What vehicle or equipment are you installing this on?
This universal 4-inch air duct hose is designed for custom cold air intake setups on a wide variety of project vehicles, classic cars, and specialized equipment. It can also be adapted for alternative hobbyist uses such as ventilation for small enclosures.
Do you need help with routing ideas or adapter dimensions?
Planning your intake routing requires checking clearance around your engine bay and ensuring you have compatible 4-inch diameter adapters or mounting plates for a secure fit.
How flexible is the air duct hose?
The hose features a built-in memory-flex structure that allows you to bend it into custom angles and shapes while retaining its rigid position without kinking or collapsing.
Are these products authentic USA imports?
Yes, all products available on Dropy India are 100% authentic USA imports, sourced directly from trusted retailers and manufacturers in the United States.
Can multiple hoses be connected together?
Yes, multiple 41-inch segments can be easily threaded together using the integrated dual-threaded design to accommodate extended routing needs.
How long will delivery take?
Most orders arrive in 15–20 days: we source each product directly from the USA, check it at our Navi Mumbai warehouse and pack it on video. Items marked Dropy Express ship from our India warehouse and arrive in 3–5 days.
Is cash on delivery available?
Full cash on delivery is available all over India on Dropy Express items. For other orders from ₹2,499 to ₹15,000 you can use Partial COD: pay 25% online now and the rest in cash on delivery.
Are your products genuine?
Yes. Every product is 100% authentic, sourced directly from the USA, quality-checked and packed on video at our Navi Mumbai warehouse.
What if my order arrives damaged or wrong?
Write to us at [email protected] as soon as it arrives. Damaged, wrong or not as described, our Buyer Protection gives you a full refund. The details are in our Return, Refund & Cancellation Policy.
Is delivery free?
Delivery is free on orders from ₹1,499. Below that a ₹79 delivery fee applies.