Looking at FCP and ECS, they don't state if Pano roof or not... Sport suspension or Standard suspension is the only thing I noticed. From what I understand is the HD springs are same as Sport (stiffer) for more load capacity. I do trailer motorcycles from time to time and do use a bike rack on the hitch... the car is narurally stiff so yeah, im slightly concerned it might be too rough with these... but at $95 for the two, I couldn't say no to them....

I suggest getting them swapped, I noticed my tires getting warn out on the insides like mad.