I just installed new kyb legacy wagon struts and new oem wagon front springs, new kyb top hats (yes yours will work) I reused my spring seats from my outback struts. I chose outback king ksrs-29 rear springs, new OEM spec b rear upper control arms, kta124 rear and and kca307 rear toe lock out. I'm very happy with the ride but the rear is still not very flat so I ordered a 20mm rear white line sway bar and I'll install it after I source some sway bar mount reinforcement brackets. I just did all new Bilstein struts and spec b top hats, h-techs, new seats, and isolators on my wife's legacy wagon. Mine rides somewhere between her new suspension and her stock suspension. Her's is very flat and planted and stiff over bumps in a sporty way. I'd take her's over mine up a canyon but mine over her's on a rough freeway commute. I was looking at the king 1" drop front and rear but I didn't want to get into sub frame spacers and driveline swap. Not sure if you know this but I didn't, there are too drain holes in the front top spring seat, they face outwards. If you do not position them correctly your struts will clunk.
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