The pipe is just a slide in fit. If its loose use some silicone sealer or make a shim out of thin metal. The brackets coming off the front of the engine are the only thing holding the pipes. Make sure they are tite. Ordering from Canada's no problem, they will handle the exchange rate, automatic if you use a credit card. However, if you want to order US try Klemps, Baxter's, Britich Only or MAP for a start.
Htown16, Houston, Texas
1978 T140E Bonneville, 1974 Trident, 1972 Commando, 1971 Commando
1974 Commando, 1970 BSA Thunderbolt, 2004 XL 1200R Sportster
Everything will be alright in the end.
If its not alright, its not the end.