aFe Magnum FLOW Air Filter w/ Pro GUARD 7 Media 4in Flange x 15in Height turn14-in-stock HC5-SPG6 kit features a Sport

HC5-SPG6 kit features a Sport pressure plate for a nice upgrade

KW Coilover Kit DDC ECU BMW M3 (E90/E92) Sedan/Coupe w/o EDC

HKS SPF ASSY 150-70 Wet 2row (RED)

There is also the option to add a breather hose

aFe Magnum FLOW Air Filter w/ Pro GUARD 7 Media 4in Flange x 15in Height turn14-in-stock HC5-SPG6 kit features a SportManufacturer Part # : 72 90117 Market Description With seven layers of progressively finer mesh cotton gauze synthetic media between 100 percent polyurethane top and base, this high flow "oiled" filter provides maximum protection with highest cumulative filtration efficiency for severe duty environments. Washable and reusable for multiple cleanings, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle