Just a quick question, is it worth trying to buy turbos or engine components whilst abroad?

I'm off to Canada and the US in Feb (mainly snowboarding, and most of time in Canada).

Would it be worth me looking for some engine components and turbo kits etc while out there?

IIRC yonks ago I read about a guy who brought 2 turbos back with him in his suitcase, went through the "nothing to declare" lane, and so paid zero import duty. Can you still do that sort of thing?