I recently had the AM Sports exhaust system intalled on my car, and I couldn't be happier It sounds amazing! It now has a much deeper throaty growl. It is not high-pitched and raspy as I would describe some of the other options.

On my way to and from work, I punch the throttle as I drive under an over-pass, and all hell breaks lose and it's actually a bit too loud.

Anyhow, the exhaust is nothing eye-catching (see pic below)...it pretty much looks like the standard box and feels just as heavy....although technically it is 2.8kg lighter. But it sounds pretty damn good to me.