[5point7]

Installed Borla system w/3.5 tips. VERY glad I went 3.5 rather than the 5 inch tips.

Sound is def. different from the Borla's on my 5 liter stang.
Initial thoughts are that this is what the factory should have done in the first place. It is still very quiet at idle. Under load is when you hear it. If you want a "loud" system, this is not it.

It's just what I was looking for - and still keeps the car very classy IMO. I'd like to hear the Corsa system in person...but too late for me!