I had 2 1/2" pipes with turbo mufflers that dumped just ahead of the rear axle on my 273. The way that thing throbbed at idle was great. Sounded like a big block, it was almost scary. It would rattle the rear view mirrors on cars next to it at traffic lights. I remember sitting at a light next to a couple of cops one time. They were looking, but they didn't say anything. :)
