---
product_id: 2798327
title: "AEM 21-678C Gun Metal Cold Air Intake System"
brand: "aem"
price: "R$6909"
currency: BRL
in_stock: true
url: https://www.desertcart.com.br/products/2798327-aem-21-678c-gun-metal-cold-air-intake-system
store_origin: BR
region: Brazil
---

# 17 HP boost @ 4100 RPM Lifetime DRYFLOW synthetic filter Proudly made in the USA AEM 21-678C Gun Metal Cold Air Intake System

**Brand:** aem
**Price:** R$6909
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate your ride with power, precision, and pride!

## Quick Answers

- **What is this?** AEM 21-678C Gun Metal Cold Air Intake System by aem
- **How much does it cost?** R$6909 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.br](https://www.desertcart.com.br/products/2798327-aem-21-678c-gun-metal-cold-air-intake-system)

## Best For

- aem enthusiasts

## Why This Product

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

## Key Features

- • **Power Surge Unleashed:** Feel the rush with a 17 HP gain that transforms your drive into a performance spectacle.
- • **American Craftsmanship:** Manufactured in the USA with premium materials for durability and reliability you can trust.
- • **Precision Engineered Fit:** Vehicle-specific design ensures seamless installation and optimal airflow dynamics.
- • **Effortless Clean & Protect:** Lifetime DRYFLOW synthetic filter means no oil, no mess, just pure airflow and superior filtration.
- • **Heat Shielded for Peak Performance:** Powder-coated heat shields reduce intake temperature, maximizing power and efficiency.

## Overview

The AEM 21-678C Gun Metal Cold Air Intake System delivers a measurable 17 HP increase at 4100 RPM, featuring a lifetime washable DRYFLOW synthetic air filter for superior filtration without oiling. Designed and manufactured in the USA, this vehicle-specific intake system includes mandrel-bent aluminum tubes and powder-coated heat shields to reduce intake temperature and restriction, ensuring enhanced engine sound and performance.

## Description

AEM Air Intake Systems are designed to produce massive horsepower and torque gains as well as better engine sound when used as a replacement for the factory airbox and air filter. AEM intake systems are designed, tuned, and dyno-tested to fit specific cars and trucks. These air intakes usually include an oversized AEM Dryflow synthetic washable air filter for outstanding air flow, filtration, and performance while allowing easy oil-free cleaning. Most AEM intake systems use mandrel-bent aluminum intake tubes, powder coated heat shields, and high quality hardware designed to reduce restriction and reduce intake temperature. The design and components of each intake system vary so consult the installation instructions for more information on the contents of each part number. AEM manufactures a variety of intake kit styles including short ram intakes, cold air intakes, dual-chamber intakes, Brute Force intakes for trucks and SUV's, and Brute Force HD intakes for diesel applications.

## Features

- Estimated horsepower gain of 17.0 HP at 4100 RPM
- All AEM Air Intakes come with a lifetime DRYFLOW Synthetic air filter with great filtration
- Manufactured in the USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | AEM |
| OEM Part Number | 21-678C |
| Global Trade Identification Number | 00840879018917 |
| Shape | Round |
| Manufacturer | AEM |
| Automotive Fit Type | Vehicle Specific Fit |
| UPC | 840879018917 |
| Model | AEM 21-678C |
| Item Weight | 9.02 pounds |
| Product Dimensions | 20.24 x 12.24 x 12.24 inches |
| Item model number | 21-678C |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | 21-678C |

## Product Details

- **Product Grade:** Replacement Part
- **Brand:** AEM
- **Fit Type:** Vehicle Specific Fit
- **OEM Part Number:** 21-678C
- **Global Trade Identification Number:** 00840879018917

## Images

![AEM 21-678C Gun Metal Cold Air Intake System - Image 1](https://m.media-amazon.com/images/I/31dtp30f8fL.jpg)
![AEM 21-678C Gun Metal Cold Air Intake System - Image 2](https://m.media-amazon.com/images/I/81h3SXWI-SL.jpg)
![AEM 21-678C Gun Metal Cold Air Intake System - Image 3](https://m.media-amazon.com/images/I/71XlPZTCOJL.jpg)
![AEM 21-678C Gun Metal Cold Air Intake System - Image 4](https://m.media-amazon.com/images/I/816d2iL16ZL.jpg)
![AEM 21-678C Gun Metal Cold Air Intake System - Image 5](https://m.media-amazon.com/images/I/71NF1YV49uL.jpg)

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**Shop now:** [https://www.desertcart.com.br/products/2798327-aem-21-678c-gun-metal-cold-air-intake-system](https://www.desertcart.com.br/products/2798327-aem-21-678c-gun-metal-cold-air-intake-system)

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*Product available on Desertcart Brazil*
*Store origin: BR*
*Last updated: 2026-01-25*