I am considering adding a sport exhaust to my car and until my last visit to the dealer I was set to install the one from TechArt. My dealer told me that I should be careful as my car is still under warranty and that the sport exhaust changes the timing of the engine and could theoratically cause damage to the engine. This is very unlikely to ever happen but if this would happen Porsche would not repair anything in the engine under warranty as I had a TechArt exhaust. He said if I insisted on a sport exhaust he would recommend using the original Porsche one. I know this could be a sales pitch but I am wondering if there is some truth...
What do you think?