WOW unveiled upgraded broadband tiers, including a 15 Mbps service. The previous fastest tier was 6 Mbps. WOW has upgraded all of their tiers and given them new names. The slowest tier, or “Xcite 2Mbps Internet,” offer 2Mbps/500k and the fastest tier, “Xtreme Turbo 15Mbps Internet,” offers 15 Mbps/2Mbps. BroadbandReports.com has all the details.