Hey Guys, i am new to the forum just been reading up on this thread. I love my 2016 legacy 2.5i limited, it runs wonderful just want it to accelerate better and am always interested in modding and tweaking things. I had a few questions, i wanted to get the kn filter, the sway bar and the cold air intake. Questions are which sway bar to get? the one for 19MM or the 20MM. I thought there was one on the list but i saw this one as well, not sure which one to pick. For the cold air intake the black covering will that protect it from inhaling water and destroying my engine? I drive this car all year long, its my daily driver. Trying to make it better and hopefully later get a nameless exhaust. Thank you for any help guys.