Time Required: 30 minutes (approximately)
Skill Level: Intermediate - You should have "above average" mechanical knowledge/experience to attempt this installation.
Mustang 2003-2004 Cobra
Running an oversized crank pulley will speed up your supercharger, therefore giving you more boost, however, you also spin the accessories faster too, spinning your alternator too fast could potentially cause damage.
This oversized alternator pulley from Metco will slow down the alternator therefore reducing the risk of hurting your alternator.