VMP Performance pulleys are a great way to change boost levels, pick your Boost. 

VMP-69-6-B, VMP-72-6-B, VMP-75-6-B, VMP-79-6-B

Details:

• Black Anodized Aluminum. (Steel powdercoated black for the 69mm)
  
• Fits 2011 + 5.0L Equipped with a Roush 2.3L TVS Supercharger Kits