new 02's, Hperflow

As long as the cats are emission legal that is all that matters. In Canada the emission testers are not concerned with who makes the cats (I doubt they could even tell the difference)....just so long as they work.
Now if it becomes as tough as California then I would mod the hyperflows and weld on a cosmetic facade.

Myself I am currently running Hyperflows for 2 years now and I just emission tested the car and it sailed through barely registering anything on the tests (of course I also did my own t belt service last year and the timing is dead on).
Before the t belt service I had the odd cell, but since that service, nothing.
The Hyperflow cats are a great product.
As for headers, I am still on the original but when they go I will be going with Fabspeed and I will be fabricating metal heat shields to 'finish the headers properly' - to protect the engine compartment from the resultant heat of unshielded headers ( I am not convinced that a ceramic coating on a header will be adequate for heat protection of all the plastic and electronic components in the engine bay).