aFe QUANTUM Intake Rplcmnt Air Filter (5-1/2x4-1/4)IN F x(8-1/2x7-1/4)IN B x(5-3/4x4-1/2)IN T x9IN H - 21-90105 fits_2005-2011`Lotus`Elise The ST Sound core provides

The ST Sound core provides the benefits of an active exhaust system without the need for an exhaust valve

and improving sound

and Throttle Response

The BladeRunner intercoolers utilize a 3" bar and plate core design that is larger than stock

Connects to OE crank case vent hose

aFe QUANTUM Intake Rplcmnt Air Filter (5-1/2x4-1/4)IN F x(8-1/2x7-1/4)IN B x(5-3/4x4-1/2)IN T x9IN H - 21-90105 fits_2005-2011`Lotus`Elise The ST Sound core providesQuantum Pro DRY S air filter by aFe Power is specifically designed for the Quantum Series cold air intake systems and feature an injection molded base and top for lighter weight and rigidity. The newly designed base includes a built in, 3 angle velocity stack for smooth, even airflow. The Quantum Pro DRY S filter is a 360 degree radial flow air filter with oil free, 3 layer progressively finer porosity synthetic media for optimum flow, filtration and