I changed the exhaust setup on my 911, and I'm really happy with it. I originally heard this muffler on a '69 911, and just it has so much character. I tried to do it justice recording it, but of course it doesn't alway translate. It screams. Can't say I feel a performance difference from the muffler alone, but the volume gives it the feeling of more urgency and sense of speed.
Next time I'll definitely need to take more steps to reduce the wind noise, but hopefully it's not too distracting. Let me know what you think!