PTG M177.1 HIGH FLOW AIRBOXESWe are proud to provide the biggest and best airboxes for your M177 powered AMG. Designed utilizing 3D scan technology and produced completely in aerospace level "prepreg" carbon fiber and hard anodized billet aluminum, these satin finished carbon airboxes are a zero restriction intake system that have substantial gains on vehicles from stock to our PTG X 1,300HP package. In testing, we have found the 50% larger than stock panel style filter to