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The Liberator Fuel Saver is an aftermarket part that uses patented airflow mixing technology to improve engine combustion. A non-moving cylindrical device, the Liberator Fuel Saver fits into vehicle intake manifolds, inducing controlled turbulence into the intake air through a unique combination of tumbling and swirl. The process pushes air through the engine at a higher velocity creating greater engine combustion, better fuel economy, lower emissions and higher low-end torque.