Motor Mount install for Subaru Impreza WRX/STi:
This how-to is based off a GR, but the concepts should be similar to a GD. I’m not sure how different the front subframe is or how it might interfere with the install.
Here is a selection of stiffer motor mounts:
Group-N motor mounts:
Group N Subaru Motor Mounts Set! Legacy Gt, Sti, WRX See Listing for Fitment!
Perrin Performance motor mounts:
Perrin Performance Motor Mount Kit Subaru WRX/STI 02-14
Torque Solution motor mounts:
Torque Solution Engine Mounts: Subaru Wrx Sti 2002-2016
I’m making this as a response to so many people saying that motor mounts are a terrible install. I think they’re cake, and I want to show why. I had originally installed the Tigwerks motor mounts, but their NVH was a little much for my tastes so I went to Group Ns, and that’s where this install was born (my second time through). I’d do it again and could accomplish the whole process inside of two hours with mandatory beer breaks.