For Subaru WRX enthusiasts seeking to boost performance, choosing the right intercooler kit is essential. The Rev9 Intercooler Kit for Subaru Impreza WRX/STI 2002-2007 stands out as the best overall due to its balance of efficiency and affordability. The Mishimoto Front-Mount Intercooler Kit for Subaru WRX 2022+ is notable for its superior cooling capacity, making it ideal for high-performance builds. Meanwhile, the Mishimoto Top-Mount Intercooler Kit for Subaru WRX 2015-2018 offers a budget-friendly option for those upgrading without extensive modifications. Buyers face tradeoffs between cooling power, installation complexity, and cost. Keep reading for a detailed breakdown to find the perfect fit for your Subaru WRX.
Complete the kit
Key Takeaways
- Top mount intercoolers generally offer easier installation and better packaging for stock locations, but front-mount kits excel in cooling performance for tuned engines.
- The best overall kits balance robust cooling with straightforward installation, making them suitable for most users.
- Premium options, like Mishimoto‘s high-capacity front mounts, come at a higher price but significantly improve charge air cooling for aggressive driving.
- Budget-friendly kits tend to be top mount designs that are easier on the wallet but may sacrifice some cooling efficiency.
- Compatibility across model years varies; selecting a kit tailored to your WRX’s specific generation ensures fitment and optimal performance.
| Rev9 Intercooler Kit for Subaru Impreza WRX/STI 2002-2007 |  | Best Overall for Classic Subaru Turbo Models | Fitment: 2002-2007 Subaru WRX/STi | Core Length: 28 inches | Core Height: 9.5 inches | VIEW ON AMAZON | See Our Full Breakdown |
| Mishimoto Front-Mount Intercooler Kit with Intake for Subaru WRX 2022+ |  | Best for Modern High-Performance Builds | Fitment: 2022+ Subaru WRX | Power Gains: 12 HP | Torque Gains: 11.8 lb-ft | VIEW ON AMAZON | See Our Full Breakdown |
| Top Mount Intercooler Y-Pipe Kit Black for Subaru Impreza WRX/WRX STi GD/GG 2002-2007 |  | Best for Aesthetic and Functional Upgrades in Older Models | Application: Subaru Impreza WRX / WRX STi GD/GG 2002-2007 | Material: Cast Aluminum, Silicone, Stainless Steel | Includes: Y-Pipe, T-Clamps, Silicone Hoses, Hardware | VIEW ON AMAZON | See Our Full Breakdown |
| Mishimoto Performance Front-Mount Intercooler Kit for Subaru WRX 2022+ |  | Best for Power Gains and Heat Management in Newer Models | Compatibility: Subaru WRX 2022+ | Max Power Gains: 12 HP | Torque Gains: 11.8 lb-ft | VIEW ON AMAZON | See Our Full Breakdown |
| Rev9 ICK-044 Front Mount Intercooler Conversion Kit for Subaru Impreza WRX/STI |  | Best for High Horsepower and Versatile Compatibility | Fitment: 2008-2013 Subaru WRX and STI | Core Length: 25 inches | Core Height: 9.5 inches | VIEW ON AMAZON | See Our Full Breakdown |
| Mishimoto Performance Top-Mount Intercooler Kit for Subaru WRX 2022+ |  | Best Overall for 2022+ Subaru WRX Owners | Fitment: 2022+ Subaru WRX | Core Type: Bar-and-plate | Efficiency Improvement: 40.6% restriction reduction | VIEW ON AMAZON | See Our Full Breakdown |
| Mishimoto Top-Mount Intercooler Kit for Subaru WRX 2015-2018, Black |  | Best for Budget-Conscious Stage 2 Tuning | Compatible Vehicles: Subaru WRX 2015-2018 | Core Size: 24″ x 10″ x 5″ | Construction: Bar and plate | VIEW ON AMAZON | See Our Full Breakdown |
| Mishimoto Top-Mount Intercooler Kit for Subaru WRX 2022+ |  | Best for Easy Fit and Improved Cooling in 2022+ Models | Fitment: 2022+ Subaru WRX | Core Type: Bar-and-plate | Restriction Reduction: 40.6% | VIEW ON AMAZON | See Our Full Breakdown |
| Mishimoto Top-Mount Intercooler Kit for Subaru WRX 2022+ |  | Best for Maximum Airflow and Cooling Efficiency | Application: 2022+ Subaru WRX | Core Size: 88% larger than stock | Flow Improvement: Over 40% better than stock | VIEW ON AMAZON | See Our Full Breakdown |
| intercooler kit for subaru wrx | Fitment |
|---|---|
| Rev9 Intercooler Kit for Subar | 2002-2007 Subaru WRX/STi |
| Mishimoto Front-Mount Intercoo | 2022+ Subaru WRX |
| Top Mount Intercooler Y-Pipe K | — |
| Mishimoto Performance Front-Mo | — |
| Rev9 ICK-044 Front Mount Inter | 2008-2013 Subaru WRX and STI |
| Mishimoto Performance Top-Moun | 2022+ Subaru WRX |
| Mishimoto Top-Mount Intercoole | — |
| Mishimoto Top-Mount Intercoole | 2022+ Subaru WRX |
| Mishimoto Top-Mount Intercoole | — |
More Details on Our Top Picks
Rev9 Intercooler Kit for Subaru Impreza WRX/STI 2002-2007
This Rev9 kit stands out for its high cooling efficiency thanks to a bar & plate core, making it suitable for high horsepower builds up to 550hp. Compared to the Mishimoto 2022+ kits, it offers a more complete solution for older models, with included pipes and hardware. However, installation demands technical skill, and its size may not fit all engine bays, especially in more cramped setups. It’s ideal for enthusiasts wanting a full upgrade on 2002-2007 models who can handle the complexity.
bestFor:Owners of 2002-2007 Subaru WRX/STi seeking a robust, complete upgrade.
notIdealFor:Those with limited mechanical skills or in tight engine bays that can’t accommodate its size.
- High cooling efficiency with bar & plate design
- Complete kit with all necessary components
- Compatible with factory foglights
- Installation may require advanced skills
- Designed specifically for turbo models, not non-turbo
Verdict: This kit offers powerful cooling and a comprehensive package for classic Subaru turbo owners willing to invest in installation.
- Fitment:2002-2007 Subaru WRX/STi
- Core Length:28 inches
- Core Height:9.5 inches
- Core Thickness:3.75 inches
- Inlet/Outlet Size:2.5 inches
- Horsepower Capacity:300-550hp
Our verdict“Best Overall for Classic Subaru Turbo Models — a strong pick in this lineup.”
Mishimoto Front-Mount Intercooler Kit with Intake for Subaru WRX 2022+
This Mishimoto kit for 2022+ Subaru WRX pushes performance gains up to 12 HP and 11.8 lb-ft of torque, thanks to a 4-inch thick core that minimizes heat soak. Compared to the Rev9 kit for older models, it emphasizes temperature reduction and power gains on stock tunes, making it ideal for those seeking immediate performance enhancements. However, installation can be complex, often requiring advanced mechanical skills, and it’s tailored exclusively for the latest models. This makes it better suited for owners planning to tune their car or improve daily performance.
bestFor: Owners of 2022+ Subaru WRX wanting to boost power with a straightforward upgrade.
notIdealFor: Those with older Subaru models or DIYers who prefer simpler, less involved installations.
- Increases horsepower and torque
- Reduces intake air temperature effectively
- High-quality heat soak protection with 4-inch core
- Installation may require technical skill
- Designed specifically for 2022+ models, not compatible with earlier generations
Verdict: This kit provides significant temperature management and power gains for 2022+ WRX owners ready to handle complex installation.
- Fitment:2022+ Subaru WRX
- Power Gains:12 HP
- Torque Gains:11.8 lb-ft
- Core Thickness:4 inches
- Temperature Reduction:Within 10 degrees of ambient
Our verdict“Best for Modern High-Performance Builds — a strong pick in this lineup.”
Top Mount Intercooler Y-Pipe Kit Black for Subaru Impreza WRX/WRX STi GD/GG 2002-2007
This Y-Pipe kit emphasizes durability and compatibility, featuring high-grade silicone, stainless steel clamps, and hardware for Subaru models from 2002 to 2007. It’s a solid choice for owners wanting a reliable, high-quality upgrade that also improves airflow, especially compared to stock setups. The included hardware and the option for color customization (black or blue) add aesthetic appeal. Yet, installation may be challenging for DIYers, and batch color variations can affect appearance. It’s best for those upgrading an older Subaru with a focus on both function and style.
bestFor: Enthusiasts upgrading 2002-2007 Subaru models who value durable components and aesthetic options.
notIdealFor: Owners seeking a plug-and-play solution or those without technical skills for piping installation.
- High-quality silicone and stainless steel components
- Complete hardware with all necessary parts
- Compatible with multiple Subaru models from 2002-2007
- Color may vary due to batch differences
- Installation can be complex, requiring technical skills
Verdict: This kit offers a durable and visually appealing upgrade for older Subaru models with a focus on airflow and aesthetics.
- Application:Subaru Impreza WRX / WRX STi GD/GG 2002-2007
- Material:Cast Aluminum, Silicone, Stainless Steel
- Includes:Y-Pipe, T-Clamps, Silicone Hoses, Hardware
Our verdict“Best for Aesthetic and Functional Upgrades in Older Models — a strong pick in this lineup.”
Mishimoto Performance Front-Mount Intercooler Kit for Subaru WRX 2022+
Mirroring the features of Mishimoto’s other 2022+ kits, this front-mount setup offers up to 12 HP and 11.8 lb-ft of torque gains, with a 4-inch core designed to combat heat soak effectively. It’s a premium choice with the added benefit of Mishimoto’s lifetime warranty, making it appealing for owners who want reliability alongside performance. Compared to the Rev9 kit for older models, it focuses heavily on temperature control and tuning potential. The installation may be complex, and gains depend on tuning, but for owners of newer WRX models, this kit delivers a noticeable upgrade.
bestFor: Performance-focused 2022+ WRX owners who want a durable, warranty-backed upgrade.
notIdealFor: Owners of older Subaru models or those seeking a straightforward, no-tune upgrade.
- Increases horsepower and torque
- Reduces outlet temperatures near ambient levels
- Lifetime warranty from Mishimoto
- Installation may be complex
- Performance gains depend on tuning adjustments
Verdict: This kit is ideal for owners of 2022+ Subaru WRX aiming for high-performance, reliable cooling solutions with warranty support.
- Compatibility:Subaru WRX 2022+
- Max Power Gains:12 HP
- Torque Gains:11.8 lb-ft
- Core Thickness:4 inches
- Warranty:Mishimoto Lifetime
Our verdict“Best for Power Gains and Heat Management in Newer Models — a strong pick in this lineup.”
Rev9 ICK-044 Front Mount Intercooler Conversion Kit for Subaru Impreza WRX/STI
This Rev9 conversion kit is tailored for 2008-2013 Subaru WRX/STI models, supporting over 500hp with a bar & plate core that outperforms stock setups. Compared to the older Rev9 kit for 2002-2007, it offers increased horsepower capacity and a more robust core design. It includes polished aluminum pipes, silicone hoses, and mounting brackets, along with compatibility to retain factory fog lights—an advantage for aesthetic integration. The main tradeoff involves potential extra piping depending on vehicle specifics and the need for additional modifications. This kit suits high-performance builds and owners ready for a more involved installation process.
bestFor: Owners of 2008-2013 Subaru WRX/STI aiming for 500+hp with a complete upgrade.
notIdealFor: Those seeking a simple, bolt-on upgrade or with limited mechanical skills for extra modifications.
- Supports high horsepower up to 500+hp
- Includes complete piping and hardware
- Retains factory fog lights for aesthetic consistency
- Requires additional modifications for some setups
- Extra pipes may be left over depending on install
Verdict: This high-capacity intercooler kit is best suited for serious performance builds on 2008-2013 Subaru models who can handle detailed installation.
- Fitment:2008-2013 Subaru WRX and STI
- Core Length:25 inches
- Core Height:9.5 inches
- Core Thickness:3.5 inches
- Inlet/Outlet Size:2.5 inches
- Horsepower Capacity:400-500+hp
Our verdict“Best for High Horsepower and Versatile Compatibility — a strong pick in this lineup.”
Mishimoto Performance Top-Mount Intercooler Kit for Subaru WRX 2022+
This kit stands out for its advanced bar-and-plate core that significantly reduces restriction and pressure drop, making it a top choice for 2022+ Subaru WRX models. Compared with the other 2022+ Mishimoto option, it offers a 40.6% reduction in restriction and a 35.7% decrease in pressure drop, translating into more efficient boost delivery and cooler outlet temperatures. While installation may demand some technical skill, the lifetime warranty provides peace of mind for long-term durability. Its design improvements are especially beneficial for owners seeking maximum performance gains on newer models, though it’s less suitable for those with limited mechanical experience or on a tighter budget.
Pros:- Significantly reduces restriction and pressure drop
- Lowers outlet temperatures for safer, more reliable performance
- Backed by a lifetime warranty for peace of mind
- Designed specifically for 2022+ models
Cons:- Limited to 2022+ Subaru WRX models
- Installation complexity may require professional help
Best for: Owners of 2022+ Subaru WRX looking for a high-performance, durable upgrade with long-term warranty coverage.
Not ideal for: Casual enthusiasts or those with limited mechanical skills, since installation can be complex and requires technical expertise.
- Fitment:2022+ Subaru WRX
- Core Type:Bar-and-plate
- Efficiency Improvement:40.6% restriction reduction
- Pressure Drop Reduction:35.7%
- Outlet Temperature:Less than 10°F over ambient
- Warranty:Lifetime
Our verdict“This kit is ideal for serious 2022+ WRX owners seeking maximum efficiency and longevity from their intercooler upgrade.”
Mishimoto Top-Mount Intercooler Kit for Subaru WRX 2015-2018, Black
This intercooler kit offers a proven +15 whp and +8 wtq increase on a stage 2 tune, thanks to its large 24″ x 10″ x 5″ bar and plate core that excels at heat transfer. Compared with the newer 2022+ Mishimoto options, it provides excellent performance gains for older models, making it a preferred choice for enthusiasts tuning their 2015-2018 WRX. While installation may require mechanical skills, its durability and lifetime warranty support sustained performance over time. This option is especially suitable for those seeking noticeable power improvements on slightly older models, but it might not deliver the same efficiency benefits for newer cars or those seeking the latest tech.
Pros:- Proven +15 whp and +8 wtq gains
- Large core improves heat transfer and cooling
- Lifetime warranty supports long-term durability
- Designed specifically for 2015-2018 models
Cons:- Installation may require mechanical expertise
- Performance gains depend on proper tuning
- Limited to older model years
Best for: Owners of 2015-2018 Subaru WRX aiming for a reliable, proven power boost with heat management benefits.
Not ideal for: Owners of 2022+ WRX or those without mechanical experience, as installation can be challenging and performance gains depend heavily on tuning.
- Compatible Vehicles:Subaru WRX 2015-2018
- Core Size:24″ x 10″ x 5″
- Construction:Bar and plate
- Weight:24.5 lbs
- Core Volume:613.5 cubic inches
- Warranty:Lifetime
Our verdict“This kit offers a reliable, proven boost for 2015-2018 WRX owners wanting enhanced cooling and power gains without the latest model features.”
Mishimoto Top-Mount Intercooler Kit for Subaru WRX 2022+
This direct-fit intercooler features a bar-and-plate core that reduces restriction by 40.6% and pressure drop by 35.7%, making it a solid upgrade for 2022+ Subaru WRX models. Compared with the other 2022+ Mishimoto options, it emphasizes ease of installation and improved airflow, helping boost efficiency and performance. The outlet temperature stays below 10°F over ambient, adding safety for high-boost conditions. While professional installation might be advisable for best results, the direct-fit design simplifies the process for experienced DIYers. It’s an excellent choice for owners who want a straightforward upgrade with noticeable performance benefits but are wary of complex modifications.
Pros:- Reduces restriction and pressure drop significantly
- Increases airflow and cooling efficiency
- Easy direct-fit installation
- Includes all necessary hardware
Cons:- Higher cost compared to stock intercoolers
- Installation may still require some technical skill
- Limited to specific 2022+ models
Best for: 2022+ WRX owners seeking a straightforward, high-quality intercooler upgrade with maximum airflow and cooling efficiency.
Not ideal for: Drivers who prefer custom or non-standard setups or lack the mechanical skill for installation, as some steps may still be technical.
- Fitment:2022+ Subaru WRX
- Core Type:Bar-and-plate
- Restriction Reduction:40.6%
- Pressure Drop Reduction:35.7%
- Temperature Reduction:Less than 10°F over ambient
- Warranty:Lifetime
Our verdict“This intercooler is well-suited for 2022+ WRX owners who want an effective, straightforward upgrade that enhances airflow and safety under boost.”
Mishimoto Top-Mount Intercooler Kit for Subaru WRX 2022+
This kit features an 88% larger core than stock, cast aluminum end tanks, and a high-flow design that markedly improves airflow by over 40%, making it ideal for drivers pushing their 2022+ Subaru WRX to higher boost levels. Compared to the other 2022+ Mishimoto options, its larger core and improved fin surface area translate into superior cooling and performance potential, especially under demanding conditions. The inclusion of upgraded piping and hardware simplifies installation for those with some mechanical skill. While more expensive and possibly overkill for casual drivers, this kit suits enthusiasts aiming for maximum cooling capacity and airflow efficiency, especially in high-boost scenarios.
Pros:- 88% larger core provides superior cooling
- Cast aluminum end tanks resist high boost pressures
- Includes upgraded piping and hardware
- Backed by a lifetime warranty
Cons:- Installation is technically demanding
- Higher price point
- Limited to specific 2022+ models
Best for: Performance-focused 2022+ WRX owners who demand maximum airflow, cooling, and durability from their intercooler upgrade.
Not ideal for: Owners seeking a simple or budget-friendly upgrade, as this kit’s size and complexity are better suited to serious tuning and requires technical installation skills.
- Application:2022+ Subaru WRX
- Core Size:88% larger than stock
- Flow Improvement:Over 40% better than stock
- Fin Surface Area Increase:76%
- Outlet Temperature:Less than 10°F over ambient
- Included:Shroud hardware, intercooler, pipes
Our verdict“This high-flow, large-core intercooler is perfect for enthusiasts aiming for maximum airflow and cooling efficiency on their 2022+ WRX, despite the installation complexity.”
How We Picked
These intercooler kits were evaluated based on performance, build quality, ease of installation, compatibility, and value. Priority was given to cooling efficiency, especially for high-performance or tuned Subaru WRX models, as well as ease of maintenance and installation. We also considered customer feedback and manufacturer reputation to ensure reliability. The ranking reflects a balance between affordability and performance, highlighting options suitable for both casual enthusiasts and serious tuners alike.Factors to Consider When Choosing Intercooler Kit For Subaru Wrx
Choosing the right intercooler kit for your Subaru WRX involves understanding several key factors that influence performance, durability, and compatibility. While price is important, focusing solely on cost can lead to compromises in cooling efficiency or fitment. The following considerations will help you identify the best upgrade for your specific needs, whether you prioritize ease of installation, maximum cooling, or budget constraints.Cooling Capacity and Performance
Cooling efficiency is at the heart of an intercooler’s purpose. High-performance models, especially those with aftermarket boost modifications, require intercoolers with greater surface area and airflow capacity. Front-mount intercoolers generally outperform top mount units in cooling, but they might require more space and modifications. When upgrading, consider your power goals and whether your current setup already runs hot, as this guides whether a simple upgrade suffices or a full cooling overhaul is needed.
Installation Complexity
Some intercooler kits are straightforward bolt-on replacements, ideal for DIY enthusiasts, while others require significant modifications or professional installation. Top mount kits often fit in the stock location more easily, whereas front mount kits may involve cutting or relocating components. Assess your mechanical skills and the tools at your disposal before choosing, as a more complex install can add to the overall cost and downtime.
Compatibility and Fitment
Not all intercooler kits fit every Subaru WRX model or generation. It’s vital to verify the kit’s compatibility with your specific year and model, especially if your WRX has aftermarket modifications or custom piping. Incorrect fitment can lead to clearance issues, poor sealing, or even damage. Manufacturers often specify compatible years, so double-checking these details prevents costly mistakes.
Build Quality and Durability
An intercooler kit exposed to harsh engine conditions needs to be built from corrosion-resistant materials like aluminum. Look for robust welds and quality core construction, especially if you plan to push your car hard. Cheaper options may save money upfront but can degrade quickly under high temperatures or repeated heat cycles, reducing their effectiveness over time.
Budget and Value
While premium kits offer better cooling and durability, they come at a higher price. Conversely, budget options may seem attractive but often sacrifice performance or longevity. Consider your goals and how much you’re willing to invest; sometimes, a slightly higher initial cost results in better long-term reliability and performance, especially if you plan to tune or heavily modify your WRX.
Frequently Asked Questions
Will upgrading my intercooler improve my Subaru WRX’s horsepower?
Upgrading to a higher-capacity intercooler can improve power output by reducing intake air temperatures, which helps maintain consistent boost levels and prevents heat soak. While the intercooler itself isn’t a direct horsepower increase component, it enables more aggressive tuning and reduces performance drops under load. For heavily modified or tuned WRXs, a quality intercooler is essential to maximize gains and maintain reliability during high-performance driving.
Can I install a front mount intercooler myself, or should I hire a professional?
Installing a front mount intercooler typically involves more complex modifications than a top mount, including cutting or relocating parts of the bumper and piping. If you have mechanical experience and the right tools, it’s possible to perform the installation yourself, but many choose professional installation to ensure correct fitment and sealing. Proper installation is crucial; an improperly fitted intercooler can cause boost leaks, reduced performance, or damage to other components.
Are all intercooler kits compatible with stock piping or do I need additional parts?
Compatibility varies; some kits are designed as direct bolt-ons using your factory piping, while others may require custom piping or adapters. Always verify the product specifications and consult with the manufacturer if unsure. Upgrading to an intercooler with compatible fittings simplifies installation and minimizes additional costs, but more advanced setups aimed at high boost levels might necessitate custom or aftermarket piping for optimal fitment.
How does a top mount intercooler compare to a front mount in cooling performance?
Front mount intercoolers generally provide superior cooling because they have more surface area and better airflow exposure, making them ideal for high-boost or heavily tuned engines. Top mount units are more compact and easier to install, fitting in the stock location, but tend to heat soak quicker during aggressive driving. Your choice depends on your power goals and whether you prefer an easier installation or maximum cooling efficiency.
What maintenance does an intercooler require over time?
Intercoolers are relatively low maintenance, but keeping the core clean and free of debris helps maintain performance. Periodic inspection for leaks, corrosion, or damage is advisable, especially if you drive in harsh environments. Some owners choose to clean the intercooler core with compressed air or specialized cleaning solutions to remove oil and dirt buildup, which can impair heat transfer. Proper maintenance ensures consistent cooling and prolongs the lifespan of your setup.
Conclusion
For most Subaru WRX owners, the Rev9 Intercooler Kit offers the best balance of performance and ease of install, making it ideal as an overall pick. Budget-conscious buyers will appreciate the Mishimoto Top-Mount Intercooler Kit for Subaru WRX 2015-2018 for its affordability, while enthusiasts seeking maximum cooling should consider the Mishimoto Front-Mount Intercooler Kit for Subaru WRX 2022+. Beginners or casual drivers should prioritize plug-and-play options, whereas serious tuners may want to invest in premium, high-capacity kits. Ultimately, matching your goals—whether daily driving, tuning, or racing—will guide the best choice for your Subaru WRX.
