K&N has designed a performance air intake system for the 2010 Mazda 3 2.5L. K&N dynamometer tests show a 6.67 horsepower gain at 5600 RPM with use of this K&N air intake modification. K&N tests multiple vehicles for each air intake system it makes to ensure a consistent horsepower and torque gain. This video demonstrates the steps needed to install a power gaining K&N air intake into 2010 Mazda 3 with the 2.5L engine. http://www.knfilters.com/search/product.aspx?Prod=69-6013TTK
