Airaid 450-177 2005-2009 Ford Mustang 4.0L cold air intake. The Airaid 450-177 Mustang 4.0L cold air intake provides an easy 13 horsepower and 10 ft-lbs of torque. Simple to install with hand tools. Detailed installation instructions are included. The Airaid Premium SynthaFlow high flow air filter is a synthetic fiber material that traps the smallest dirt particles that ordinary cotton gause filters can't capture without inhibiting air flow. That translates in improved air flow over stock and dramatically improved throttle response and power. The air filter is surrounded by the Airaid cool air dam molded air box that seals the filter from hot engine compartment air.
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