An upgraded intake system increases the amount of airflow available to your engine while still properly filtering out debris or particles from the road. In vehicles that have the M276 with twin turbochargers, higher airflow allows the engine to make more power. This is most apparent in vehicles running higher boost levels such as those that are tuned or have upgraded turbochargers. The stock airboxes, even with high-flow filters, show their limitations, especially with upgraded turbos.
