James, they do have to pay something when they receive a package from the US - most Canadians know about it. I only use the USPS ("slow" air - 6-10 days) when sending mufflers into Canada, & it is the most economical way by far. FedEx is terrible expensive into Canada, even though that's all I use for my domestic shipments. Also, if I ship anything other than an envelope to Canada, it has to go air - NO ground service! Even if I tried to ship into Windsor across the river!