Bringing this thread back to life for a comment
I had a chance to pull out the silencer for a few days, the car went from sounding like it had a nice solid tune to a popping noisy fart can.
I was surprised because I got quite a few comments on how good the car sounded at my first autoX event. It had almost an Infinity type sound when I pushed it around the course.
At the last event I pulled out the silencer and it popped and sounded like crap... the weird thing was it even felt like it lost a bit of power

No comments on how it sounded. On my way home I left it out and the drone just about killed me! It was way louder, but not in a good way.
This exhuast system sounds WAY WAY better with the silencer in.