I did not order anything special, just the T-top as advertised for a 2018 red SL Slingshot.
Is this the new T-top from all things slingshot?
If it is I believe these are made to order from scratch
others feel free to correct me if I am wrong
edit - yes I just checked the all things slingshot site and if this is the top we are talking about it does say these are made to order