Yep, bars and bushings are all that is required. Although if you have an early 124, you may want to replace the frame brackets as well, they were re-designed during production (forget the break point) and the new ones are beefier. If you add the LWB bar, you would also want the 500E rear sway bar (18mm) to balance the package out. Otherwise you'd end up with understeer when pushed hard. I plan to install the LWB bar on my car this spring, and get the 500E bar eventually. I currently have the regular Sportline bars (27.5/18/22mm front, and 16.5mm rear).
