Advanced Flow engineering is a manufacturer of automotive cold air intake systems, performance air filters, fluid filters, intake manifolds turbochargers, programmers, throttle body spacers and exhaust systems. The aFe product line includes over 2,500 applications. All aFe Power filters are washable and reusable. aFe’s Pro Guard D2 filter program includes oil, fuel and transmission filters. aFe produces exhaust systems for diesel applications.