How much does this cost to the nearest dollar?

K&N Cold Air Intake Kit Increase Acceleration & Engine Growl, Guaranteed to Increase Horsepower up to 19HP Compatible with 5.0L, V8, FORD (Mustang GT),
K&N air intake systems are engineered for increased performance, outstanding durability, and sleek aesthetics—and are available in an assortment of finishes and powder coatings. K&N’s state-of-the-art High-Flow Air Filter helps to shield your engine from contaminants, while a meticulously engineered aerodynamic tube design contributes to a guaranteed increase in horsepower and torque. K&N air intake systems are designed to improve acceleration, towing, and throttle response while providing world class protection for your engine. Our intakes are dyno-tested and provide more airflow compared to OEM intake systems. K&N int

Price is $400.00

Price: $399.99