E92 M3 Carbon Intake

The E92 M3 OEM airbox has a narrowing elbow which passes through and into the airbox. Multiple companies have created elbows which marginally smooth out the internal shape to increase airflow.
In order to improve the airflow the intake system needs to be completely redesigned.
Infinity Design are in development of a smoothly increasing diameter elbow which connects to a large high volume air filter which is placed inside a fully redesigned airbox.