BMC 2007 Subaru Impreza III 2.5 WRX STI Oval Trumpet Airbox Kit

BMC is well-known for making high-performance air filtration systems, and this Oval Trumpet Airbox Kit for your 2007 Subaru Impreza III 2.5 WRX STI is a prime example of their work. This kit is designed to replace your factory airbox with a more efficient system that can help your engine breathe easier. By improving airflow, you can expect a more responsive throttle and potentially a subtle increase in power, especially when combined with other engine modifications.

The heart of this kit is the BMC air filter, which uses a unique oval trumpet design to help smooth the intake charge and reduce turbulence as air enters the filter. The filter itself is constructed with a well-built cotton gauze material, layered between two wire meshes, and then treated with a special oil to trap even small particles while allowing maximum airflow. This means you get better filtration without choking your engine. The airbox housing is made from durable materials designed to withstand the heat and vibrations of the engine bay, ensuring it lasts for years to come. Installation involves removing the stock airbox and mounting this new system in its place, integrating with your existing intake piping.

This BMC airbox kit is a solid option for WRX STI owners looking to enhance their engine's breathing capabilities. Keep in mind that this kit is not CARB approved and cannot be shipped to California. For best results, consider pairing it with other intake or exhaust upgrades. Always refer to the manufacturer's installation guide for specific instructions.