aFe Magnum FLOW Universal Air Filter w/ Pro 5R Media (24-25507) 1847 the muffler system is built

the muffler system is built in such a way that by replacing a blocking plate with the optional Akrapovic sound kit valve system the driver is able to noticeably increase the volume of the exhaust at the press of a button

Competition outlets replace the factory exhaust tips with adjustable turndowns for re-directing and controlling the exhaust volume

(E46) 2003 BMW 330xi (E46)

5" to 4" to accommodate aftermarket turbo inlet pipes that are 4" in diameter

If the number on the Porsche sticker is 99361866600

aFe Magnum FLOW Universal Air Filter w/ Pro 5R Media (24-25507) 1847 the muffler system is builtMagnum Flow Pro 5R Round Tapered Blue Air Filter (24 25507) by aFe. This high flow Pro 5R air filters are constructed with 100% polyurethane on all sides and will out flow the stock paper filters for improved performance. Five layers of progressively finer cotton media provides maximum air flow. Washable and reusable for multiple cleaning cycles, the tall, open and evenly spaced filter pleats provide excellent dust holding capacity for longer service