i dont think you have to get them installed coz they are mostly a Do-It-Yourself mod..especially the exhaust, very easy bolt on, no need to be a wrench head..for the springs, i installed mine with a buddy, it's not easy and it's not hard either..just time consuming..for the sway bars, im not sure about it but i pretty much think it's not that hard coz it's just unbolting and bolting back the screws and replacing the stock sway bar..if you go the Installs section here in the forum, they have a step-by-step instruction, looks easy to me..but i cant say that really coz i havent done it yet..if you were to get them installed though, springs will cost you around $150-$200..im not sure bout the others..but i suggest you install them yourself, you get that satisfaction after you done it..goodluck!