K&N cold air intake systems are built for horsepower. If they canÍt increase a car or truck’s horsepower, they wonÍt build a system for it. K&N establishes a stock baseline horsepower with its in house dynamometers and then design its air intakes to get the largest horsepower gain attainable without causing a ñCheck Engine Lightî to come on. It’s horsepower numbers are not based on the single biggest gain from one particular vehicle but are an average of runs and vehicles. Many times an identical vehicle will perform differently so K&N wants to ensure repeatable numbers you can count on.æ In todayÍs market place there are some pretty big cold air intake claims. K&N doesnÍt make claims; it presents the facts, backed up by well documented tests.
How does a cold air intake system increase horsepower? It all starts with the air filter. Even a K&N replacement air filter is limited by the size of the original air box, but once the air box is removed, there’s plenty of room to work with. Now K&N can apply its High-Flow technology to a large conical open element air filter, providing more surface area for huge increases in airflow that turn into horsepower you can feel. The oversize air filter also captures and holds more dirt.æ This increases the service life before a cleaning is required (up to 100,000 miles for air intakes depending on driving conditions).