I got the Ultra Racing sway bar and strut tower for XV50 as far as fitting the SL im not sure... but i would imagine that the physical design (size wise) of the Atara S, SL, SX to be the same. Everywhere ive seen BC Racing have a good name, maybe not as good as Tein or H&R... obviously if you wait longer you'll have a bigger choice of coilovers... and i don't love that the shipping isnt specified for them... that can often mean expensive... shipping my wheels from california cost me around $300ish.