These procedures will show you how to remove the factory muffler from your 993, the installation is the reverse of these steps.
Basic tools needed
to complete this job:
Step 1: Loosen
the 13 mm bolts that holds the exhaust tips on
Step 2: After removing
the bolts, use the snap ring pliers to spread open the flange that secures
the tips to the muffler and remove the muffler tips.
Step 3: Loosen
the 13 mm bolt that is on the flanges on the other end of the muffler pipe
that attaches to the CAT.
Step 4: Use the snap ring pliers to open up the flange and slide the flange so it rests on the CAT side. This will save you a step when installing the replacement muffler.
Step 5: Remove
the strap that holds the muffler in place, on the 95 993s that strap is
held together using a 13 mm bolt, on 96+ 993s the bolt is a 6mm hex bolt.
Slide the strap out of the way and lift the muffler up from its clip and
the pipe that is resting on the CAT. the muffler will drop down.
Installation procedure is the reverse of these steps. When mounting the exhaust tips back do not tighten the bolts all the way, leave enough slack so the tips are still moveable. Once the desire position is adjusted tighten the bolts down.
P.S. The mystery muffler on these pictures is the Fabiani 2nd generation system. Donor car for this DIY is my 96 993.