These 2+2 end trims fit on the rear bumper just like coupe trims do.
However the sides on the 2+2 end trims are longer than the coupe so the 2+2 trim side mounting holes do not line up with the holes on the coupe that have an inlaid bolt for bumper end trims to bolt to.
If one is intent on mounting these 2+2 end trims on a coupe , new holes can be drilled in buyers vehicle , the sides can be attached with two sided tape ( not included), or the side holes simply not used.