E46 - B48 Swap Stock Turbo Air Box Kit

Finish off your build with this custom air box for a clean, OE style look. This air box replaces the factory E46 upper inlet duct, to improve flow and reroute air to the turbo side of the engine. Using a factory fit air filter makes finding a replacement filter easy as well as providing the option to switch to a reusable filter.   

The inlet duct pulls air from directly behind the grill ensuring the coolest, cleanest air for maximum performance

Designed to work with a factory turbo and lower intake boot, no need to reroute pcv and breather hoses

Comes with a high quality Mahle air filter, replace or upgrade to any filter interchangeable with p/n: 13727843284

Nylon material provides much better thermal insulation than aluminum ensuring the air entering the engine remains cool

Dyno tested to support 350hp and 400ft-lbs torque