---
product_id: 313821580
title: "4inch Aluminum Alloy Bellmouth Velocity Stack Adapter Car Modified Turbo Air Intake Horn Air Inlet Decorative Cover Red"
brand: "x autohaux"
price: "€ 49.13"
currency: EUR
in_stock: true
url: https://www.desertcart.nl/products/313821580-4inch-aluminum-alloy-bellmouth-velocity-stack-adapter-car-modified-turbo
store_origin: NL
region: Netherlands
---

# Smooth bellmouth design boosts airflow & throttle response 4-inch neck diameter for optimal fit Aluminum alloy with anodized finish for durability 4inch Aluminum Alloy Bellmouth Velocity Stack Adapter Car Modified Turbo Air Intake Horn Air Inlet Decorative Cover Red

**Brand:** x autohaux
**Price:** € 49.13
**Availability:** ✅ In Stock

## Summary

> 🚗💨 Turbocharge your style and performance with every breath!

## Quick Answers

- **What is this?** 4inch Aluminum Alloy Bellmouth Velocity Stack Adapter Car Modified Turbo Air Intake Horn Air Inlet Decorative Cover Red by x autohaux
- **How much does it cost?** € 49.13 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/products/313821580-4inch-aluminum-alloy-bellmouth-velocity-stack-adapter-car-modified-turbo)

## Best For

- x autohaux enthusiasts

## Why This Product

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

## Key Features

- • **Durable & Stylish:** Crafted from anodized aluminum alloy with a powder-coated red finish for lasting performance and eye-catching appeal
- • **Precision Fit & Finish:** 4-inch neck diameter ensures seamless integration with your turbo system
- • **Universal Compatibility:** Designed to fit most turbocharged vehicles—check specs to upgrade your ride confidently
- • **Enhanced Airflow Dynamics:** Bellmouth shape minimizes turbulence and boundary layer separation for denser air intake and sharper throttle response
- • **Performance Meets Aesthetics:** Not just functional—this velocity stack doubles as a bold engine bay statement piece

## Overview

The X AUTOHAUX 4-inch Aluminum Alloy Bellmouth Velocity Stack Adapter is a precision-engineered turbo air intake horn designed to optimize airflow by reducing turbulence and boundary layer separation. Made from durable anodized aluminum with a striking red powder-coated finish, it enhances throttle response while adding a sleek, performance-inspired look to your engine bay. Ideal for professional installation and compatible with most turbocharged vehicles, this velocity stack is a must-have upgrade for enthusiasts seeking both function and flair.

## Description

4inch Aluminum Alloy Bellmouth Velocity Stack Adapter Car Modified Turbo Air Intake Horn Air Inlet Decorative Cover Red

## Features

- Dimension: 6.5x18cm / 2.56"x7.09"(H*OD), Neck Inner Diameter: 9.8cm /3.35", Neck Outer Diameter: 10.1cm /4"
- Decorative also helps engine to draw in more and denser air resulting in better throttle response.
- The turbo inlet horn is made of aluminum alloy with an anodized and powder coated finish.
- Note: Please check the specification before ordering to confirm if the product fits your needs, professional installation is highly recommended.
- Package Includes: 1 x Velocity Stack

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | X AUTOHAUX |
| Brand | X AUTOHAUX |
| Product Dimensions | 6.5 x 17 x 6.69 cm; 209 g |
| Item model number | a21032200ux0051 |
| Manufacturer Part Number | a21032200ux0051 |
| Position | Inside |
| Voltage | 12 Volts |
| Item Weight | 209 g |

## Product Details

- **Brand:** X AUTOHAUX
- **Fit type:** Universal Fit
- **Product dimensions:** 6.5L x 17W x 6.7H centimeters
- **Shape:** Conical
- **Manufacturer:** X AUTOHAUX

## Images

![4inch Aluminum Alloy Bellmouth Velocity Stack Adapter Car Modified Turbo Air Intake Horn Air Inlet Decorative Cover Red - Image 1](https://m.media-amazon.com/images/I/61DQqMVUO2L.jpg)
![4inch Aluminum Alloy Bellmouth Velocity Stack Adapter Car Modified Turbo Air Intake Horn Air Inlet Decorative Cover Red - Image 2](https://m.media-amazon.com/images/I/81ZweF0MBFL.jpg)
![4inch Aluminum Alloy Bellmouth Velocity Stack Adapter Car Modified Turbo Air Intake Horn Air Inlet Decorative Cover Red - Image 3](https://m.media-amazon.com/images/I/61ViGxxqaAL.jpg)
![4inch Aluminum Alloy Bellmouth Velocity Stack Adapter Car Modified Turbo Air Intake Horn Air Inlet Decorative Cover Red - Image 4](https://m.media-amazon.com/images/I/613UwjcY03L.jpg)
![4inch Aluminum Alloy Bellmouth Velocity Stack Adapter Car Modified Turbo Air Intake Horn Air Inlet Decorative Cover Red - Image 5](https://m.media-amazon.com/images/I/61j-9HSl3CL.jpg)

## Available Options

This product comes in different **Color** options.

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**Shop now:** [https://www.desertcart.nl/products/313821580-4inch-aluminum-alloy-bellmouth-velocity-stack-adapter-car-modified-turbo](https://www.desertcart.nl/products/313821580-4inch-aluminum-alloy-bellmouth-velocity-stack-adapter-car-modified-turbo)

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*Product available on Desertcart Netherlands*
*Store origin: NL*
*Last updated: 2026-01-24*