---
product_id: 1670017
title: "Performance 9741 Black 4\" x 3.5\" Intake Coupler"
brand: "spectre"
price: "C$2519"
currency: NIO
in_stock: true
reviews_count: 13
category: "Spectre"
url: https://www.desertcart.ni/products/1670017-performance-9741-black-4-x-3-5-intake-coupler
store_origin: NI
region: Nicaragua
---

# Connects 4" to 3.5" OD tubes Not for turbo/supercharged engines Includes 2 stainless steel worm gear clamps Performance 9741 Black 4" x 3.5" Intake Coupler

**Brand:** spectre
**Price:** C$2519
**Availability:** ✅ In Stock

## Summary

> 🔧 Upgrade your airflow game — connect with confidence!

## Quick Answers

- **What is this?** Performance 9741 Black 4" x 3.5" Intake Coupler by spectre
- **How much does it cost?** C$2519 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/1670017-performance-9741-black-4-x-3-5-intake-coupler)

## Best For

- spectre enthusiasts

## Why This Product

- Trusted spectre brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Fit Reducer:** Seamlessly bridges 4" and 3.5" intake tubes for a flawless airflow connection.
- • **Sleek Dual Color Options:** Available in bold black or vibrant red PVC to match your engine bay’s style.
- • **Compact & Lightweight Design:** At just 0.23 kg, it’s easy to install without adding bulk or weight to your setup.
- • **Durable Stainless Steel Clamps:** Comes with two corrosion-resistant worm gear clamps ensuring a secure, vibration-proof seal.
- • **Engineered for Naturally Aspirated Power:** Optimized for non-turbocharged engines to maintain peak performance without compromise.

## Overview

The Spectre Performance 9741 Intake Coupler is a precision-engineered reducer designed to connect 4-inch and 3.5-inch outside diameter intake tubes. Crafted from durable PVC and equipped with two stainless steel worm gear clamps, it ensures a secure, leak-free fit. Ideal for naturally aspirated engines, this lightweight and stylish coupler comes in black or red, making it a must-have for enthusiasts seeking reliable, clean airflow connections without turbocharger compatibility.

## Description

Spectre’s Intake Coupler Reducer is designed to connect any 4 inch outside diameter component or air intake tube with a 3 1/2 inch outside diameter component or intake tube. This intake coupler is available in both red and black PVC and comes complete with 2 stainless steel worm gear hose clamps. This product is not recommended for turbo-charged/super-charged engines.

Review: excellent product and price point - Needed replacement for my 06 Avalanche, using K&M air filter intake tube. Couldn't find replacement from any part stores, NAPA wanted $65 for 1 ft piece of rubber tube (that i would have to cut down, and didnt include pipeclamps). This adapter came with 2 hose clamps and worked good on my truck, a bargain, will probably order another one to have as a spare
Review: Perfect for my 2014 Mustang - I recently put a BOSS 302 intake manifold in my 2014 Mustang 5.0, and I added an Accufab throttle body along with a JLT CAI. I needed a coupling like this in order to connect the TB and CAI of course, and they're two different diameters. This did the trick and everything is connected all snug! Even held up through DynoTune and didn't break loose or anything. Great quality, would recommend.

## Features

- Connect any 4 inch outside diameter component or air intake tube with a 3 1/2 inch outside diameter
- Comes complete with 2 Stainless steel worm gear hose clamps
- Not for turbo-charged/supercharged engines
- Available in both red and black PVC

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001OMK5NA |
| Best Sellers Rank | #478,207 in Automotive ( See Top 100 in Automotive ) #13 in Automotive Performance Hose Fittings & Adapters |
| Brand Name | Spectre |
| Color | Standard |
| Connector Type | Reducer |
| Customer Reviews | 4.5 4.5 out of 5 stars (605) |
| Exterior Finish | Machined |
| Global Trade Identification Number | 00089601974101 |
| Included Components | REDUCER CLAMP |
| Item Dimensions | 6 x 4 x 4 inches |
| Item Type Name | REDUCER CLAMP |
| Item Weight | 0.23 Kilograms |
| Manufacturer | Spectre |
| Manufacturer Warranty Description | 3 Months |
| Material Type | Stainless Steel |
| Model Number | SPE-9741 |
| Number of Pieces | 1 |
| UPC | 089601974101 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Spectre
- **Color:** Standard
- **Connector Type:** Reducer
- **Exterior Finish:** Machined
- **Global Trade Identification Number:** 00089601974101
- **Item Weight:** 0.23 Kilograms
- **Item dimensions L x W x H:** 6 x 4 x 4 inches
- **Manufacturer:** Spectre
- **Material:** Stainless Steel
- **Number of Pieces:** 1

## Images

![Performance 9741 Black 4" x 3.5" Intake Coupler - Image 1](https://m.media-amazon.com/images/I/71Tie3lwPrL.jpg)

## Questions & Answers

**Q: What is the outside diameter on the 3.5 in end?**
A: the OD is approximately 3 3/4 inches, and i can count 6 to 7 teeth left exposed on the hose clip done up, and the clip is 78 -101mm size wise,

**Q: Will it work on 5.3 liter vortex engine chevy subrban**
A: Yes, as long as your throttle body is 4" and your intake tube is 3.5"

**Q: How much will it stretch? Will i be ablw to stretch it to fit 3-3/4" pipe**
A: Yes, the 3.5" end will fit on a 3.75 od pipe.

**Q: What is the length?**
A: 3 inches long

## Customer Reviews

### ⭐⭐⭐⭐⭐ excellent product and price point
*by J***R on October 2, 2021*

Needed replacement for my 06 Avalanche, using K&M air filter intake tube. Couldn't find replacement from any part stores, NAPA wanted $65 for 1 ft piece of rubber tube (that i would have to cut down, and didnt include pipeclamps). This adapter came with 2 hose clamps and worked good on my truck, a bargain, will probably order another one to have as a spare

### ⭐⭐⭐⭐⭐ Perfect for my 2014 Mustang
*by T***Y on August 30, 2019*

I recently put a BOSS 302 intake manifold in my 2014 Mustang 5.0, and I added an Accufab throttle body along with a JLT CAI. I needed a coupling like this in order to connect the TB and CAI of course, and they're two different diameters. This did the trick and everything is connected all snug! Even held up through DynoTune and didn't break loose or anything. Great quality, would recommend.

### ⭐⭐⭐⭐⭐ Worked great.
*by B***Y on August 20, 2023*

Just what I need for my install and fit perfect.

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**Shop now:** [https://www.desertcart.ni/products/1670017-performance-9741-black-4-x-3-5-intake-coupler](https://www.desertcart.ni/products/1670017-performance-9741-black-4-x-3-5-intake-coupler)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-04-24*