Whiteline 20mm Rear Swaybars:
BSR39 - Non Adjustable
BSR39Z - 2 point Adjustable
Look at that stock toothpick!
Swaybar mounting points, they are super flimsy. I'm quite ashamed at Subaru thinking this was sufficient...
I sprayed everything with PB Blaster and started trying to remove the end link bolts, it would not budge (started stripping the head). This is where I remembered about heat, heated it with a MAP torch for about a minute.
After heating it I sprayed it with PB Blaster again, this cooled metal and lubricated at the same time. The bolt came out like butter, seriously don't even waste your energy trying to remove them without heat.
Mounting points didn't need heat, but would have made it slightly easier, I just didn't want to scorch the bushings.
Getting the stock swaybar out was tricky. But I was trying to remove it without touching anything else, that was a mistake. Unhook your muffler hangers and let the mufflers rest on a spare jack stand. This will make your lifer easier getting the swaybar out and in.
Whiteline 20mm vs stock toothpick.
Insert the swaybar, make sure you get the orientation of it correct the C bend needs to go over the control arms.
Grease the bushings and put them on the bar and bolt it up to the mounting brackets.
I would mount and tighten the end link on the swaybar end first while the bar moves easily (hard to get to once end links are hooked up to knuckles). After that put both wheels on the ground (I use drive on ramps) and only then tighten them down. If you tighten the swaybar while one or both wheels are in the air, the bar will be preloaded once you lower the car to the ground.
All done, took me about 2 hours to install, would have been one hour if I took the muffler hangers off and lowered the mufflers to begin with.
I haven't driven the car hard enough to feel the difference. Will update once I drive it for a bit.
Now I did have to preload the swaybar just to get the link to fit. This could be because I removed one tire and the suspension drooped on that wheel only. I will go back and see if the bar is still preloaded once it sags again.