Sorry I should have said they can be very different. Some will be close, none will be the same as OEM because most of the KYB's stocked in NZ are their budget range. They have to be to compete with Monroe.
Where Toyota will do different shocks for a range, eg the ae101, basic models, fxgt, ze variants etc, KYB will do a one size fits all.....
Nothing wrong with them as cheap replacements, but they are not all identical to OEM. and they are not an upgrade on most things.
Same as TRD shocks are made by KYB Tokico and Bilstein, but you can't buy the exact same ones from them either.
Interesting fact, when at I was Autolign KYB were a small percentage of our sales, but made up most of our warranty claims.
So If the price is affordable OEM > aftermarket in most cases.
If you want to upgrade over OEM then you need to look at Koni bilstein etc unless you can find a Japanese brand stocked here. Eg KYB or Tokico sports type shocks.
That said 99% of people don't need $$$ flash shocks, just ones that do the job.