Honda Cr-z Crz Zf1 Racing 2.5" Stainless Steel Muffler Exhaust Catback System Kit 4.5" Tip Warranty: Yes | Condition:New Installation Guides: No Installation Guides Included Surface Finish: Stainless Steel Polish Fitment: 2011-2015 Honda CR-Z Piping Diameter: 2.5" / 65mm | Muffler Tip Size:4.5"