My 2000 Boxster 5-speed has a sport exhaust whose mounting system has failed twice recently. Years ago, when I bought the car, I had to have the mounts to the bracket repaired. The exhaust itself has a couple of welded "caps" that each contain a bolt coming up thru it. These bolts attach to a pair of mounts that are on a bracket. The exhaust is kinda suspended from this bracket. Recently, the bolts that attach to the mounts failed. I took it to be repaired, and after one weekend at the track, these bolts have failed again. Sheared apart.To do the repair, you have to cut the welds to remove the old bolt and insert a new one.
Does anyone know what type of bolt I should be using to make this repair? Apparently, the bolts that were used in the most recent repair couldn't stand up to the stress. Mechanic told me they used strongest thing they could find, since they understood how it broke in the first place...
