It’s all heavily dependent on how much noise you are willing to tolerate. I mounted my turbo so I could run the down pipe in front of the motor and all the way to the car back. It has a cut out too for when I want everyone to know what’s going on. Otherwise, it sounds like a lightly modified car
I'm on the same page as everyone here. Out the fender is a new trend I don't understand. I also do some BMW stuff, and everyone over there is running out the fender exhaust on their 300hp BMWs. It's juvenile. If you aren't making 3500hp on a track only car, go ahead and put a real exhaust on it. Do you really want to damage your ear drums and huff exhaust fumes every time you drive your car?