Ok, I may have seen everything MOPAR now...

I worked about 100 yards from one of those hemi powered sirens for years.................................... I always wondered why the put a muffler on something that was built to make that much noise however..............

Many of those didn't have mufflers

[ame="http://www.google.com/search?hl=en&newwindow=1&safe=off&site=imghp&tbm=isch&source=hp&biw=1366&bih=647&q=chrysler+siren&oq=chrysler+siren&gs_l=img.3..0i24l2.3488.10063.0.10756.14.10.0.4.4.0.106.948.7j3.10.0.crnk_timediscounta..0.0...1ac.1.Rtxah6mgCYs"]chrysler siren - Google Search[/ame]