The Stage 2 Power Package for the Mustang EcoBoost is the best second level for the Ecoboost powered vehicle. During exhaustive testing, the COBB engineers found that heat, not necessarily airflow, was the biggest restriction to power on the platform. As such, they married a larger Front Mount Intercooler to our 3" mandrel-bent aluminum intake kit. This setup cools temps as much as 100 degrees and produces significant power. Everything is tuned right out of the box with the Accessport and pre-installed maps.