Well I live SMACK In Between LA and San Fran. On the Central Coast here in California. Got a set of Shocker S4’s installed on my Bicycle Pushing 120 Psi and a 2.5 gallon tank. Don’t believe me? I’ll send you the video or you can check out the video Section of The Forums. Hope to talk to someone else who is from this area that doesn’t think that I am a public Nuisance for having a Train Horn.