Reddit reviews Kartboy Subaru STI Rear Endlinks 04-07

If the the idea of a lift is already on your radar (and within the budget) I would go ahead and do it while you have everything taken apart.

You have a couple options depending on how much lift you're going for. In my opinion, ADF (www.andersondesign-fab.com) lifts are really really great for the price. The customer service is also second to none. When I installed mine, I emailed them with a question and Patrick (the owner) responded in LESS THAN A MINUTE haha. FYI, They just moved to a new shop so they're a bit backed up rn.

Or you could go with lift springs. Both RalliTek and Primitive Racing sell them separately or in their fully assembled kits. RalliTek also makes their own springs as another option. Also, note that the Standard Height versions of Kings will actually provide a small amount of lift, too.

You could also combine ADF lift spacers AND lift springs. With our cars, I've heard not to go over 2" total due to extra stress on the CV joints. Many people have gotten away with it though.

One thing to keep in mind is that the higher up you go, the more need you'll have for trailing-arm spacers. They keep your back wheels centered in the wheel well. ADF sells them in their kits. You may also need to ditch your rear sway bar altogether or get longer rear end links (Kartboy STI endlinks https://www.amazon.com/dp/B0067QSFQW/ref=cm_sw_r_sms_apa_i_XoMRDbK0GP82A are great for lifted Foresters!).

It know it may seem a little daunting, but in the long run, I'm really glad I lifted mine. Good luck!