PLYMOUTH—Comcast Corp. officials announced an increase in download speeds for some of its most popular Xfinity Internet packages for customers in Michigan for no additional charge.

Download speeds for the company’s Performance tier will jump from 60 Mbps to 100 Mbps, while Blast! speeds will increase from 150 to 200 Mbps, Extreme will move from 250 to 300 Mbps, and Extreme Pro will be upgraded from 400 to 600 Mbps.

About 85 percent of Comcast’s Internet customers in Michigan subscribe to one of these tiers and will have their download speeds upgraded, whether they purchase Xfinity Internet on a stand-alone basis or as part of a package.

Last year, Comcast boosted download speeds for Blast! and Extreme customers in Michigan. Over the past two years, Michigan Comcast subscribers on average have seen their speed increased by more than 50 percent.

“Modern homes require fast Internet, wall-to-wall Wi-Fi, and a way to manage the connectivity needs of the entire household,” said Tim Collins, regional senior vice president for Comcast in Michigan. “To keep up with our customers’ needs we are giving them increased speed, coverage and control to support the growing number of connected devices, apps and tech in their homes.”

Over the next several weeks, customers who lease a gateway will automatically receive the new speeds without having to reset their modems. Other customers who purchased their own modems should check online to see if they need a new device that is capable of handling these faster speeds (http://mydeviceinfo.comcast.net/).

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