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Holiday Gift Guide Iag 950 Ej25 Closed Deck Case - W/ Bore & Hone / 14mm H.s.m. Fire-lock For Subaru Wrx Sti Lgt Fxt Perfect Gift [zY1ZmkCb]

$135.99 $435.99 -69%

IAG 950 EJ25 Closed Deck CaseIntroducing the IAG 950 EJ25 Closed Deck Case, a revolutionary upgrade for Subaru WRX STI, LGT, and FXT models. This premium product is designed to address the common issue of OEM Subaru EJ25 case halves being underperfor

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IAG 950 EJ25 Closed Deck Case

Introducing the IAG 950 EJ25 Closed Deck Case, a revolutionary upgrade for Subaru WRX STI, LGT, and FXT models. This premium product is designed to address the common issue of OEM Subaru EJ25 case halves being underperforming in high-performance scenarios. The IAG 950 Closed Deck Case is engineered to withstand increased power and boost levels, significantly enhancing the engine's durability and reliability. With its proprietary "Closed Deck" system, the case halves provide unparalleled support to the cylinder walls, preventing movement and expansion that often lead to cracks and failures.
  • Strength and Durability: The IAG Closed Deck System fortifies the weakest areas of the OEM Subaru EJ25 case halves, ensuring that your engine can handle the demands of high cylinder pressures.
  • Optimized Cooling: Despite the added material, the design maintains the same coolant area around the middle of the cylinder, ensuring efficient cooling and preventing overheating.

Engineered for High Performance

The IAG 950 Closed Deck Case is built to handle extreme power outputs, boasting a 950 BHP rating. It features custom inserts machined with holes for oil and coolant, ensuring a seamless transition and compatibility with stock components. Additionally, the case is compatible with the race-proven Fire-Lock™ head gaskets system and includes modifications for 14mm head studs, making it the perfect choice for both street and track applications.
  • Custom Build Flexibility: For those who prefer to do their own builds, the IAG Closed Deck Case halves are available separately, allowing you to install your crank, rods, and pistons to your own specifications.
  • In-House Engineering: The conversion process is performed 100% in-house by IAG's engineers and experts using state-of-the-art equipment, ensuring the highest quality and precision.

Vehicle Compatibility and Specifications

The IAG 950 EJ25 Closed Deck Case is specifically designed for Subaru vehicles, including the Forester, Impreza, Legacy, WRX, and WRX STI models from 2002 to 2021. This product is crafted from high-quality aluminum and features a 99.75mm stock bore diameter. The cylinder wall configuration is Siamesed, and it is compatible with all fuel types.
  • Vehicle Compatibility: Subaru: Forester 2004 - 2015, Impreza 2002 - 2013, Legacy 2002 - 2013, WRX 2012 - 2021, WRX STI 2013 - 2021
  • Material and Specifications: Aluminum, 99.75mm stock bore diameter, Siamesed cylinder wall configuration, compatible with all fuel types, 950 BHP power rating.

What Our Customers Say

December 28, 2025

Absolutely no complaints!

It's a very good and very reliable tool.

- Simon F..

December 28, 2025

Absolutely no complaints!

This is a high-quality, excellent product.

- Monica N..

December 28, 2025

Absolutely no complaints!

A purchase I am thoroughly happy with.

- Elara Q..

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