I worried about fumes too. I would pull over before sitting in bumper to bumper trafic. I figured if Melanie was not passed out when I took her around the block a few times it should be ok for the dog. Noise was a concern but she said it was not bad at all, even with the 2into1.
The noise has been the main factor in me not transforming one of our trailers into a dog hauler. I had spent many a hour trying to get the fumes from the exhaust to exit rear of the trailer and not have to re-tune the bike for the extended exhaust system.
I guess I have gone into too much scientific study of the exhaust fume/ noise problem.....never thought of just putting my wife into the trailer and if she survived the around the block trip, it would be safe enough for the dog
