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OS EnginesThere are 3 products.

OS Engines
If you are frustrated with mid air engine cut offs, unreliable idling RPM, over heating resulting in power loss, the solution is OS Engines. Trusting your engine makes piloting more fun. OS Engines is “The First Choice” for Quality, Durability and Performance. It’s a powerhouse carved with unbeatable precision for ultimate performance. Now you can shop the world class engines from a reliable source.