K&N Filter - Process West Cold Air Intake Kits Model_Forester 2003-2005 which ensures that a set

which ensures that a set of four will have a tolerance deviation of no more than 2

as used with Process West Cold Air Induction kits

Along with it's extreme temperature capabilities

the piston is sent to the quality control department to be measured

There are certain areas where a piston machined from solid is marginally better than a forging but the strength benefits of a forging far outweigh any benefits of a fully machined piston

K&N Filter - Process West Cold Air Intake Kits Model_Forester 2003-2005 which ensures that a setK&N are world renowned for their expertise in high performance air filtration. The filter technology and construction is second to none. Youll find a K&N filter in pretty much every activity that involves a high performance internal combustion engine, with the Subaru being no exception! This is a replacement K&N Filter, as used with Process West Cold Air Induction kits.