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Subaru STI Engine Parts

IAG 750 Closed Deck Long Block Engine w/ IAG 750 Heads 2002-2014 WRX / 2004-2021 STI

$10,837.49 - $11,049.99
$10,837.49 - $11,049.99
Current price $10,837.49
Original price $12,749.99 - Original price $12,999.99
Original price $12,749.99 - Original price $12,999.99
Original price $12,749.99

A "DROP-IN" SOLUTION The IAG Performance Hand-Built Subaru EJ25 Closed Deck Long Block Engine Packages are a complete, valve cover t...

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IAG 950 Closed Deck Long Block Engine w/ IAG 950 Heads 2002-2014 WRX / 2004-2021 STI

$11,899.99 - $12,154.99
$11,899.99 - $12,154.99
Current price $11,899.99
Original price $13,999.99 - Original price $14,299.99
Original price $13,999.99 - Original price $14,299.99
Original price $13,999.99

A "DROP-IN" SOLUTION The IAG Performance Hand-Built Subaru EJ25 Closed Deck Long Block Engine Packages are a complete, valve cover t...

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IAG Performance Stage X Short Block 2002-2014 WRX / 2004-2021 STI

Current price $16,199.99
$16,199.99 - $16,199.99
Current price $16,199.99
Original price $17,999.99
Original price $17,999.99 - Original price $17,999.99
Original price $17,999.99

The CNC Billet Aluminum EJ case seeks to change the Subaru performance tuning market by reinventing the EJ and addressing virtually every weakness ...

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Your Subaru STI was built for excitement, but why settle for stock when you can achieve so much more? WRXDaily’s premium Subaru STI engine parts help you unlock the raw potential of your car. Turn your track days or daily drives into unbeatable experiences.

Whether you’re aiming for peak efficiency or high-octane power, our Subaru WRX STI engine upgrades deliver solutions tailored to your goals. For even greater customization, explore our range of Subaru STI aftermarket performance parts crafted to elevate every aspect of your engine’s performance.

Every part we offer is precision-engineered for seamless integration and maximum impact. From reliable endurance to thrilling power gains, these parts are made to perform. Don’t wait to transform your Subaru into the ultimate performance machine; start your build with WRXDaily’s expertly crafted parts today.