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The FA engine does a lot of things right. It’s efficient, smooth, and delivers strong everyday torque, which makes it a solid platform for daily driving as well as performance-focused builds—but it’s also an engine that expects a little more attention and support. Oil level, oil quality, and maintenance habits play a much bigger role here than they did on olde …
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Subaru engines have built a solid reputation as tough, capable platforms. The long-running EJ platform has proven itself through daily driving, weekend track days, and even serious power gains when set up correctly. That said, like any performance-oriented engine, the EJ does have a few known weak points, especially when oil control, heat management, or routine maintenanc …
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An AOS can be a real game-changer. Upgrades in fuel efficiency, increased power output, and extended engine lifespan are just the beginning. In this article, we’ll break down how an Air Oil Separator works and why your Subaru needs an AOS, ASAP. HOW DOES AN AIR OIL SEPARATOR WORK? ISN'T IT THE SAME AS A CATCH CAN? Let’s start with the basics …
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