aFe MagnumFLOW Air Filters IAF P5R A/F P5R 5-1/2F x (7x10)B x 5-1/2T x 8H Ball Joint The included radiator hose fits

The included radiator hose fits the K20A/A2/A3/Z1 water neck

and will make the whistling sound more readily than the 5701 (high boost and RPM is required to get the whistle from a 5701)

Year Make Model Submodel 1996-1997 Subaru Impreza Brighton 1996-2000 Subaru Impreza L 1996 Subaru Impreza LX 1996-2000 Subaru Impreza Outback 1998-2000 Subaru Impreza RS

Year Make Model Submodel 2008-2013 BMW 128i Base 2008-2013 BMW 135i Base 2009-2010 BMW 328i Base 2007-2013 BMW 335i Base

aFe MagnumFLOW Air Filters IAF P5R A/F P5R 5-1/2F x (7x10)B x 5-1/2T x 8H Ball Joint The included radiator hose fitsWith five layers of progressively finer mesh cotton gauze media between 100 polyurethane top and base, this high flow "oiled" conical performance filter provides excellent airflow for maximum horsepower and torque. Washable and reusable for multiple cleanings, the tall, open, evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Pliable polyurethane flange with integrated bumps insures tight, no leak