I have stock factory side windows bonded to the door frame. Looking for process to remove other than cutting. Any help appreciated

 

You should post in the Cup section, lots of good information is shared.

 

Did you ever figure this out? I have the same issue with a 991.1. Thanks!

 

Different things altogether with Cups.

The cup rear quarter windows are slotted in place and held down by a flat clip which binds with the B pillar on the front end, and a twist screw on the rear end close to the C pillar. The lexan flexes to ease installation.

Street cars use adhesives as you already know.