Just curious if the high rise and low rise spoilers use the same bolt pattern/holes? If someone had a high rise and wanted a low rise, would it a bolt on swap? Or vise versa?

 

its the same pattern. they will bolt up just fine. There are no issues swapping thm out.

 

You need some sort of filler though from what I've seen. 3M double sided tape I bet would work just fine. Something as a cushion or buffer between the spoiler and deck lid. Without it it will be slightly loose and wiggle.
Yes to answer the question though same pattern and size.

 

Thanks. Does the high rise come with such a buffering agent? There must be a difference in bolt length?

 

Both have a layer of double sided tape "pad" (GM calls it a tape kit) the shape of the spoiler mount bottom, a mm or two thick. the tape itself is very sticky and some have said it can hold on the spoiler just by itself but i wouldn't try that! To take off the spoiler you will need to use the dental floss trick to cut the tape between the spoiler and trunk and remove the left over tape material from the trunk. Then get a new oem tape kit for the low rise or get some 3m UHB tape and make your own "pad". It will need to seal any water out from getting into the trunk so it needs to be done right. The oem tape kits are different between the two spoilers and uber expensive if you want to go that route.