Air is a critical factor in the internal combustion process that occurs inside the engine, and ensuring that your vehicle has adequate airflow can maximize engine production and efficiency. Aftermarket air filters can help improve this process, leading to increased horsepower and torque, as well as improved fuel efficiency. A high-flow air filter is more technically known as a high-performance air filter, which explains well what differentiates it from an average air filter. These filters are made of several layers of cotton filter media that have been treated with a special oil to help stop contaminants that can be harmful to the engine.
When you replace a clogged air filter with a high-performance one, you can expect an increase in horsepower of up to 5 HP and an increase in torque. The cooler air outside the engine compartment is denser than the warm air inside the engine compartment, which is heated by the internal combustion of the engine and other movement mechanisms that generate heat through friction. When the hood is closed, it seals against the heat shield weatherstrips, creating a kind of air box that helps prevent the intake from ingesting hot air from the engine compartment. K&N is one of the leading companies in aftermarket air filters, having been making cold air intakes longer than any other company.
They are the world leader in cold air intakes for cars and trucks, and their cold air inlet is considered to be one of the best on the market. Fuel economy has been improved because high-performance air filters draw air from outside the engine compartment, where the air is colder. Replacing a clogged air filter can increase fuel efficiency and improve acceleration, depending on the make and model of your car. Many companies claim that their design will increase power, torque and improve acceleration.
However, don't expect a bunch of extra ponies to suddenly appear when you hit the accelerator. The numbers are small and you probably don't feel the extra power. It's important to note that while aftermarket air filters work, they may not be as effective at filtering out contaminants as original filters. A particle as small as a grain of salt can pass through a damaged air filter and cause a lot of damage to internal engine parts, such as cylinders and pistons, which can be very costly to repair.
When you realize that, it makes sense to replace your air filters regularly. Air filters are one of the easiest and quickest components to exchange for an aftermarket part, so make sure you keep up with regular maintenance.
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