Does anybody know if the GXP spoiler center-section would have the same stud-alignment as the standard Bonneville spoiler? Schram has a few GXP spoilers for sale. No outer pieces however, but I may buy the center piece and hold onto it until I can find the outers.

Thanks.

I can tell you this.

GM used the same trunk lid for the GXP, SSEi, SLE and SE w/ spoiler models

GXP/SSEi/SLE/SE w/ spoiler = 25650010
without spoiler = 25669458

I "think" you would be safe to assume they use the same mounting holes.

You are probably aware, but the side pieces are taped on.

Didn't know they were taped on. That'* surprising but somewhat of a relief. I had enough stress drilling holes in my trunklid for my stock spoiler I've got now.

Thanks.