Consider getting the front sumo springs. Its the whole package of upgrades that made the biggest difference. I started with the helwig sway bar sway improved but still had rolling in wind and trucks passing. Added rear sumo next , better sway and less roll but stiil felt rv plowed and rolled to the outside of turns. Plowing gone with front sumos and steering on turns no longer made the power steering feel too week. This summer drove thru rough roads in the north east and decided to add the heavy duty bilsteins . Now rocking parked nearly gone. Roll from passing trucks ,wind and bumps dampened to one push without rocking. Turns feel tight and much more level. I am done with upgrading the suspension . Overall each upgrade made a noticable improvement but if you are going to pay for the labor , may want to do it all at once. Just my opinion, others may not have found the upgrades as helpful.
2015 Solera 24r