Hi Ted
Join the VCA and you can post on the Western canada forum. You could search
YouTube - Broadcast Yourself. for an exhaust video
Membership is handled by Fred Kappler (
[email protected]) for our region.
You're right about the exhaust sounding different on a Gen2. The Corsa tech told me that the tone is much more mellow because of the equalizer tube and the exhaust tubing being triple the length of the sidepipes so ... yes the Gen2s sound better!!!

at least I think so.
There is quite a few Gen 4s in calgary and I'm pretty sure that more than one has changed exhaust - just can't remember who. Probably Greg Phillips on his ACR? He's a race driver instructor at Race City.
Ted