I know that a lot of you have done it already, but for some of you it will be a future task!
This is the easiest way to remove the precat in less than 3 (in words three) minutes without bloody fingers and red-hot drills.
Pic 1. Drill an 8mm hole in the middle of the catalytic converter
[attachment=28113:IMG_1.jpg]
Pic 2. Screw in a 10mm wood screw with the cordless screwdriver
[attachment=28114:IMG_2.jpg]
Pic 3. Clamp the screw in the vice
[attachment=28115:IMG_3.jpg]
Pic 4. A few blows with the hammer on the flange and the cat comes out of the pipe in one piece
[attachment=28116:IMG_4.jpg]
Finished …......... and
Pic 5. Gratification
[attachment=28117:IMG_5.jpg]
PROST