Hey Mark, in answer to your question I think that the front mounts with no fans would be better than the stock rads with no fans, but only for a short time. If by riding in "traffic" you mean sitting at the occasional stoplight, then the front mounts will take slightly longer to heat up due to the larger coolant volume. But any radiator system no matter how large will eventually heat up with no air movement. As soon as you add a fan into the system, whether it be the stock rads or the front mounts, they will outperform any cooling system without a fan in standstill conditions.
On another note, as soon as I can afford it I will be buying a set of these front mounts because they look spectacular and Im sure will be superior to the stockers for my intended use. Well done on developing a great looking product Glen.
Last edited by Saiyan66; 07-22-2011 at 12:52 AM.