---
product_id: 5133995
title: "21-478WR Wrinkle Red Cold Air Intake System"
brand: "aem"
price: "₩1169285"
currency: KRW
in_stock: true
reviews_count: 8
url: https://www.desertcart.kr/products/5133995-21-478wr-wrinkle-red-cold-air-intake-system
store_origin: KR
region: South Korea
---

# 36 HP gain Lifetime filter USA made 21-478WR Wrinkle Red Cold Air Intake System

**Brand:** aem
**Price:** ₩1169285
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Ride with AEM's Power Boost!

## Quick Answers

- **What is this?** 21-478WR Wrinkle Red Cold Air Intake System by aem
- **How much does it cost?** ₩1169285 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/5133995-21-478wr-wrinkle-red-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

- • **Breathe Easy:** Equipped with a lifetime DRYFLOW Synthetic air filter for optimal filtration.
- • **Built to Last:** Durable design ensures longevity and reliability on every drive.
- • **Unleash Your Power:** Experience a thrilling 36 horsepower boost at 5300 RPM!
- • **Lightweight Champion:** Weighs in at just 8.45 pounds for easy installation and handling.
- • **Engineered for Excellence:** Crafted in the USA for superior quality and performance.

## Overview

The AEM 21-478WR Wrinkle Red Cold Air Intake System is designed to enhance your vehicle's performance with an estimated horsepower gain of 36 HP at 5300 RPM. Manufactured in the USA, it features a lifetime DRYFLOW Synthetic air filter for exceptional filtration, ensuring your engine breathes clean air for optimal performance. Weighing only 8.45 pounds, this intake system is both lightweight and durable, making it a perfect upgrade for any car enthusiast.

## Description

AEM21-478WR Wrinkle Red Cold Air Intake System

## Features

- Estimated horsepower gain of 36 HP at 5300 RPM
- All AEM Air Intakes come with a lifetime DRYFLOW Synthetic air filter with great filtration
- Manufactured in the USA

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | AEM |
| Brand | AEM |
| Model | AEM 21-478WR |
| Item Weight | 8.45 pounds |
| Item model number | 21-478WR |
| Is Discontinued By Manufacturer | No |
| Exterior | Painted |
| Manufacturer Part Number | 21-478WR |
| OEM Part Number | 21-478WR |

## Images

![21-478WR Wrinkle Red Cold Air Intake System - Image 1](https://m.media-amazon.com/images/I/512EeiCfUaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Great Product. Have always used AEM and always will
  

*by K***N on Reviewed in the United States on April 3, 2020*

This is the 3rd car I've had an AEM intake on. Everytime, I'm amazed at the quality and attention to detail with the company. Install was super easy and quick. Tuned the car and now it's running smooth. From before install and tune to after, my '11 WRX actually feels like its running smoother and better. Throttle response is better and the sound that is produced is just amazing. Probably gain a little bit of power. But from just running better and the responsiveness, 100% worth every penny.

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Buy it
  

*by M***A on Reviewed in the United States on May 31, 2021*

Exactly what it said it was. Fit perfect in my 2010 STI , super easy install.  Harder to get the old intake out than put in new set up.  Great sound under acceleration, noticeable difference all aroundI think this is the best option for intakes available for 2010 sti. This set up actually gets filter away from engine bay, and fits all existing OEM mounts.Wrinkle red color is a little brighter than wrinkle red on intake manifold, so if you are super picky about color match be prepared to adjust

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Decent bolt on power
  

*by J***N on Reviewed in the United States on June 11, 2011*

Installed on 2011 STI sedan along with the AP tune ACN91 AEMThere is a lot of info on CAIs for WRX/STIs in the forums so I wont be too redundant.DO NOT expect to be blown away by the extra power if you are already running a stage 1 tune.There is some noticeable power as you near the top of the range, but for day to day driving you wont tell much difference.Here is a link to some good dyno info on the AEM and other bolt ons.<...>What is good:*Quality of the product.*Ease of installation.*Easy to return to stock if you plan to be stealthy when taking the car in for service.*Looks good*CARB sticker*No CELs (didn't run it on a stock tune though)What is not great:*There is an odd intake sound with this CAI. I have had K&N and Macs on other cars before and you usually get a honk or howling sound. This one sounds really odd at low RPMs and not at all nice to listen too. Turn the radio up and you wont hear it.*Not a tremendous gain over stage 1 AP tune. My opinion is that it is less smooth than the stage 1 tune by itself - not bad though.*To clean the filter you will need to take out the entire assembly (not really too difficult and cleaning is not that frequent).*Should come with the splash cover given the filter location on the STI. Down low in the front corner and very likely to get wet.Amazon has the best price on this for sure. I would buy the splash cover and install the first time. Planning to get it and install soon.The best part is the recirc valve noise you get through the filter. Getting on and off the gas gives a menacing whoosh that makes it sound great. Not as loud as an external BOV, but a more subtle effect. My wife thinks I am an idiot since i made her roll down her window and listen. It may be worth $200 just for that!My goal is to get a protune soon and i wanted the most mods possible while being easy to revert to stock. I have the SPT exhaust that sounds great once it settles in. Probably if you want max power you should go right to stage 2 and spend the money on the DP.

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-28*