There is a "raised spoiler" cover and a normal cover. I haven't seen anything that shows the raised spoiler cover being for the R or Track spoiler or if the normal cover is good for the track spoiler
The normal version is intended for all regular GT350's, but the "raised spoiler" version is intended for the GT350R. 50Deep swapped to a GT350R spoiler not the track package spoiler so he had to get the raised spoiler version. Here are links to both covers and the part numbers are listed...