Removing Roof Frame Reinforcement

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2013 Porsche 911, 2012 Porsche 911, 2011 Porsche 911, 2010 Porsche 911, and 2009 Porsche 911. However, it is still accessible from the selected car via links, so may be relevant.

Cutting the spotwelds
1. 1.1. Mill off spotwelds in area -A- using a spotweld cutter.
  
  Fig 1: Cutting Spotwelds
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Separating and milling off welded joints
1. 2.1. Separate inert-gas welded seams in areas -A- and -B- from the inside using a parting grinder.
2. 2.2. Mill off spotwelds in area -C- using a spotweld cutter.
  
  Fig 2: Separating Welded Joints
  Courtesy of PORSCHE CARS NORTH AMERICA, INC.