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Air and Fuel› Air and Fuel Cooling Systems and Components

Subaru

WRX STI 2.5L Intercooler

$825.18 $528.28 Save $296.90

SKU: 21820AA470

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$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The Subaru inter-cooler is a component for the WRX STI. It is designed for the 2.5L engine. This inter-cooler fits 2015-2016 Subaru WRX STI models.
Show original supplier description
The Subaru inter-cooler is an OEM replacement part designed for the 2.5L engine found in the 2015-2016 Subaru WRX STI. This inter-cooler is specifically manufactured to fit Base, Limited, and Series.HyperBlue trims of the WRX STI. This component is crucial for managing engine temperatures, especially in performance applications where increased boost pressure can lead to higher intake air temperatures. By cooling the charge air before it enters the engine, the inter-cooler helps maintain optimal combustion and can contribute to consistent power delivery. As a genuine Subaru part, this inter-cooler ensures direct fitment and compatibility with your vehicle's existing systems, maintaining the integrity and performance standards set by the manufacturer.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandSubaru
Part Number21820AA470
CategoryAir and Fuel

Videos

How to Install an STi Top Mount Intercooler [Subaru Impreza WRX STi and Forester XT 2002-2021]

How to Install an STi Top Mount Intercooler [Subaru Impreza WRX STi and Forester XT 2002-2021]
Subaru Service series Part 10 WRX STi intercooler install tips impreza SVTWRC

Subaru Service series Part 10 WRX STi intercooler install tips impreza SVTWRC
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GrimmSpeed Subaru 02-07 WRX / 04-17 STI Intercooler and Splitter Install Video
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Installing a Grimmspeed TMIC On My 2017 Subaru STI
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Process West Black Top Mount - Subaru WRX/STI Install/Review
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ETS Front Mount Intercooler 2004-2007 Subaru WRX/STI: How To
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How To Install Subaru Impreza WRX STI TMIC Easily In Just 2 Minutes
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Performance Top-Mount Intercooler Kit for the 2008-2015 Subaru WRX STI Install Video
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How-To remove an intercooler on a Subaru
FMIC VS TMIC (Pros & Cons) Subaru WRX & STI

FMIC VS TMIC (Pros & Cons) Subaru WRX & STI
GrimmSpeed Front Mount Intercooler Install - 2015+ Subaru STI

GrimmSpeed Front Mount Intercooler Install - 2015+ Subaru STI
GrimmSpeed Front Mount Intercooler Install - 08-14 Subaru WRX/STI

GrimmSpeed Front Mount Intercooler Install - 08-14 Subaru WRX/STI
I BUILT THE ULTIMATE SUBARU WRX

I BUILT THE ULTIMATE SUBARU WRX
COBB Tuning - Subaru Front Mount Intercooler Install (2008-2014)

COBB Tuning - Subaru Front Mount Intercooler Install (2008-2014)
Subaru Front Mount Intercooler Install! "Bolt On" kit...

Subaru Front Mount Intercooler Install! "Bolt On" kit...
GrimmSpeed Front Mount Intercooler Install - 2015+ Subaru WRX

GrimmSpeed Front Mount Intercooler Install - 2015+ Subaru WRX
Installing a Universal eBay Intercooler on my N/A-T Subaru

Installing a Universal eBay Intercooler on my N/A-T Subaru

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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