The Kartboy battery hold down wins our prize for "lightest battery hold down." The clean lines contain some serious CNC pocketing that removes a bunch of the inner, non-structural aluminum. Those finicky bicyclists who agonize over every gram of equipment on their bikes would be proud of this piece. (It's only 2.4 ounces.)
Fits all late-model Subarus, including Impreza, WRX, Legacy, and Forester.