Precision Works E55 5.5 AMG M113K Supercharger Pulley Scatter ShieldIn stock! Precision Works E55 5. 5 AMG M113K Supercharger Pulley Scatter Shield You upgraded the pulley on your AMG but did you protect that pulley from springs failure that can cause serious engine damage? Aftermarket supercharger pulleys are known to have springs failures, this scatter shield will protect the springs from flying all over the engine bay which can cause damages to the engine and other components. It is not "IF it breaks", it is "WHEN