Upgraded my exhaust today and boy am I tired! Removed the entire back bumper, inner plastic covers. The job would have taken myself and buddy about 2 hours but we ran into a snag. The main bolts that stabilize the muffers were situated where you cannot remove them, because they hit into the fire housing/body of the car. Has anyone experienced this? Called a local Porsche dealer for help but that's useless. Ended up cutting away at the bolts and replacing them. The OEM exhaust was never changed or modified before. Probably installed at the factory not worrying about people changing it out. In the end the job was done and saved some $$ for another MOD!