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Fast Shipping Iag Performance / Crest Stage X 2.5l Subaru Billet Aluminum Short Block For Wrx Sti Lgt Fxt. Save 80% Now [i15tLFOZ]

$175.99 $563.99 -69%

High-Performance Subaru Billet Aluminum Short BlockThe IAG Performance / Crest Stage X 2.5L Subaru Billet Aluminum Short Block is a revolutionary component designed for those seeking to elevate the performance of their Subaru WRX STI, LGT, or FXT. Cr

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High-Performance Subaru Billet Aluminum Short Block

The IAG Performance / Crest Stage X 2.5L Subaru Billet Aluminum Short Block is a revolutionary component designed for those seeking to elevate the performance of their Subaru WRX STI, LGT, or FXT. Crafted with world-leading technology, this short block is inspired by Willall's incredible billet GT-R block, promising to transform the Subaru performance tuning market. The Stage X Block is a complete short block, offering a robust foundation for your engine's performance needs.
  • Superior Materials: Constructed from solid billet 6061-T6 Aerospace grade aluminum, this short block boasts increased material thickness in all known weak points, such as around head studs and bottom end locations.
  • Strength and Durability: The Stage X Block features rolled threads for enhanced strength and durability, ensuring that your engine can withstand the demands of high-performance driving.

Key Features and Specifications

This short block is not just about strength; it is also designed with efficiency and compatibility in mind. The Stage X Billet EJ25 Case is fully operational with the cooling system, featuring radiused coolant and oil galleries for improved flow and reduced foaming/turbulence. It also fits all factory engine bay ancillaries, such as AC/PS, making it a seamless upgrade for your Subaru.
  • Power Output: With a power output rating of 1100+BHP, this short block is capable of delivering the power you need for your high-performance Subaru.
  • Engine Specifications: The Stage X Block offers a compression ratio of 8.5:1 on D Cylinder Heads (EJ255) and 8.2:1 on B, V, and W EJ257 Heads with standard thickness gasket.

Vehicle Compatibility and Assembly Details

The IAG Performance / Crest Stage X 2.5L Subaru Billet Aluminum Short Block is designed for a variety of Subaru models, including the WRX STI, LGT, and FXT. It is assembled in the USA, ensuring high-quality craftsmanship and reliability. This short block is a perfect choice for those looking to upgrade their Subaru's engine performance without compromising on quality or compatibility.
  • Brand Name: IAG Performance
  • Country of Origin: USA
Whether you are a professional mechanic or a car enthusiast, the IAG Performance / Crest Stage X 2.5L Subaru Billet Aluminum Short Block is a must-have component for your Subaru's performance enhancement journey.

What Our Customers Say

December 28, 2025

Absolutely no complaints!

This is a product that is of great quality and a great addition.

- Bennett C..

December 28, 2025

Absolutely no complaints!

The product is a very good quality system.

- Selah V..

December 28, 2025

Absolutely no complaints!

I'm very happy with this gadget overall.

- Callan G..

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