33-2079 K&N Replacement Air Filter, Porsche 944 2.5L, '81-90' 5 series This 100 mm diameter idler

This 100 mm diameter idler pulley can be used to correct belt length when changing supercharger pulleys or harmonic balancer sizes on the C6 ZR1 LS9

This allows your engine to inhale a larger amount of air than the factory air filter assembly

and a roar that announces your arrival

The dampers come with six outer grooves for standard OEM drive systems—but eight and 10 grooves are available for supercharger or turbo applications

Just a sprayer you can rely on

33-2079 K&N Replacement Air Filter, Porsche 944 2.5L, '81-90' 5 series This 100 mm diameter idlerOVERVIEW K&N washable, reusable High Flow Air Filters feature a state of the art design of layered, oiled cotton media engineered to improve airflow and capture contaminants, and are designed to provide an increase in horsepower. Upgrade today and start enjoying superior airflow and superior performance from K&N's most popular product! DETAILS ENGINEERED POWER: State of the art air filter media is designed to increase horsepower and acceleration as