
IAG-EXT-4001 Comparison
| photo | price | summary | rating |
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![]() | $139.99 | Condition is New, IAG Turbo Heat Shield Blanket For Subaru WRX / STI Turbos w/ Internal Wastegates, FREE SHIPPING | ![]() |

Introducing the IAG Performance IAG-EXT-4001 Cobb Turbo Heat Shield Blanket, specially designed to provide optimal protection for the internal wastegates of Subaru WRX STI turbos. This high-performance heat shield is an essential accessory for those seeking to extract maximum power from their Subaru engine.
Manufactured using premium materials, this heat shield blanket is meticulously crafted to fit the unique contours of Subaru WRX STI turbos. Its primary function is to insulate and protect the internal wastegates from the intense heat generated during high-performance driving. By doing so, it ensures that the wastegates operate efficiently and effectively, thereby maintaining the consistency of boost pressure and maximizing the engine's power output.
The IAG Performance IAG-EXT-4001 Cobb Turbo Heat Shield Blanket is engineered with a multi-layered insulation system that consists of high-density ceramic and thermal insulation materials. These materials effectively absorb and dissipate heat, ensuring that the wastegates remain at an optimal temperature. This not only enhances their performance but also extends their lifespan, ultimately saving you from costly repairs and replacements.
One of the key features of this heat shield blanket is its custom-fit design, which ensures a secure and snug fit around the wastegates. This not only provides excellent insulation but also prevents any potential contact between the hot components and other sensitive parts of the engine. The fitment is precise, eliminating the need for modifications or custom fabrication, making installation a breeze.
Additionally, the IAG Performance IAG-EXT-4001 Cobb Turbo Heat Shield Blanket is designed to be compatible with most aftermarket upgrades and modifications, making it an ideal addition to any Subaru WRX STI build. Its sleek and discreet design ensures that it blends seamlessly with the engine bay, maintaining the aesthetic appeal of your vehicle while delivering unparalleled performance benefits.
In conclusion, the IAG Performance IAG-EXT-4001 Cobb Turbo Heat Shield Blanket is an indispensable accessory for Subaru WRX STI owners seeking to enhance their engine's performance and durability. Its premium construction, custom fit, and effective insulation properties make it a must-have addition to any high-performance Subaru build.
The IAG Performance IAG-EXT-4001 Cobbturbo Heat Shield Blanket is designed to insulate and protect the internal wastegates of Subaru WRX STI turbos from excessive heat. Here are some potential pros and cons of purchasing this product:
Pros:1. Enhanced Durability: The heat shield blanket provides an additional layer of protection to the internal wastegates, which can help prevent damage from high temperatures. This can lead to increased longevity and reliability of the turbocharger system.
2. Improved Performance: By insulating the wastegates, the heat shield blanket can help maintain consistent boost pressure and reduce turbo lag. This can lead to improved performance and a more responsive driving experience.
3. Reduced Engine Bay Heat: The heat shield blanket can help reduce the amount of heat that enters the engine bay, which can make the driving experience more comfortable and help improve the overall efficiency of the engine.
Cons:1. Cost: The IAG Performance IAG-EXT-4001 Cobbturbo Heat Shield Blanket is not an inexpensive modification. The cost of the product may be a deterrent for some Subaru WRX STI owners.
2. Installation Complexity: The installation of the heat shield blanket can be a complex process, as it requires the removal of various components in the engine bay. This may require the assistance of a professional mechanic or a significant amount of time and effort for a DIY installation.
Conclusion:The IAG Performance IAG-EXT-4001 Cobbturbo Heat Shield Blanket is a high-quality product that can provide significant benefits for Subaru WRX STI owners. These benefits include enhanced durability, improved performance, and reduced engine bay heat. However, the cost and installation complexity may be a deterrent for some potential buyers.
Recommendation:If you are a Subaru WRX STI owner who values performance and reliability, and you are willing to invest in a high-quality modification, then the IAG Performance IAG-EXT-4001 Cobbturbo Heat Shield Blanket is an excellent choice. However, if you are on a tight budget or are not comfortable with the installation process, then this modification may not be the best option for you.
Details:
Condition is used. Cob btu rbo heat shield blanket for Subaru Wrx / Sti turbos w/ internal wastegates. Shipped with USPS ground advantage.
specifications heatnshield:
- for models: Wrx, Sti
- for makes: Subaru
- brand: Iag Performance
- mpn: Iag-ext-4001
- type: Heat Shield
- color: Silver
- item height: 4.0
- vintage part: No
- item weight: 0.6
- performance part: Yes
- upc: 887753779991
offer heatnshield:
- sold #: 17
- availability: in stock
- options: ship-to-home
- started: november 27, 2025
- in stock #: 1
- price: $139.99
- item condition: New
payments heatnshield:
- credit card: visa
- other
- wallet: google-pay
shipping heatnshield:
- transit: 6-12 days
- type: fixed
- service: usps ground advantage
- carrier: usps
- class: standard
returns heatnshield:
- policy: no returns
general heatnshield:
- category: Auto Parts > Car Truck Accessories > Exhaust Emission Systems > Heat Shields, Wraps Sleeves
seller heatnshield:
- rating: 100.0%
- # reviews: 239
- city: grimes, iowa
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