You may be subject to Import fees above specific dollar amount: $800 on packages. Partsouq uses FedEx Intl so if you're shipping small, expensive components (like a brake master cylinder) you could be subject to fees. Best to figure that out ahead of time by contacting FedEx or here: Internet Purchases | U.S. Customs and Border Protection
I don't know if it matter or not, but my last order can from DHL.