Hey all, my gf has a 2017 WRX and I've been doing some neglected maintenance like brakes and I noticed the tensioner or idler pulley making noise. I ordered a kit for the serpentine belt and tensioner, but for some reason I can't for the life of my figure out how to replace the tensioner. Not my first rodeo, but I mainly work on euro cars, never subies. The tensioner I got in the kit was just a cylinder with a pulley attached to it. Seems like all the kits I could order for it are the same. What am I missing? I can't find a diy for the fa20 engine anywhere. Thanks!