Cold startup isn't that bad. With a good aftermarket exhaust it sounds a little like Satan has released the Hounds of Hell, especially in a parking structure. It may not be for everyone but, I like having the neighbors think the apocalypse has begun...especially my neighbors to the right. Hearing them complain occasionally puts a smile on my face. Besides, they are about 110 years old so, having them come out every few days to moan about the 45 seconds of M3 Hellfire let's the rest of us know they are still alive. See, I'm doing the community a service with my Akrapovic Evolution cold start up earthquake.
Oh yea, it's fun to set off car alarms too.