An intake system employing multiple individual air filters, typically six, to enhance airflow and filtration efficiency for internal combustion engines. This configuration is often observed in high-performance applications, such as racing or modified vehicles, where maximizing engine power is a primary objective. The system replaces the standard, single air filter housing with an assembly of six smaller, independent filters directly mounted to individual intake runners or a common plenum.
The significance of this multi-filter approach lies in its potential to reduce intake restriction and increase the surface area available for filtration. By dividing the airflow across multiple filters, the pressure drop across the system is minimized, allowing the engine to draw in air more freely. Moreover, the increased filter surface area extends the service life of the filters and improves their capacity to capture contaminants, protecting the engine from wear and damage. Historically, such systems were developed and refined within motorsports to gain a competitive edge by optimizing engine performance.