It's somewhat unclear which models had the brake upgrade.
Some people say certain years, other say if it had ABS, etc.
The ONLY real way to tell is if the calipers have AD22VF stamped on them. One type is when the fluid boils in the line. OTOH, when you overcook your pads the pedal will still feel the same as ever, but you won't stop as well as you otherwise would. Sometimes you will also get billows of toasted-pad smoke from the wheels. The fix for this is better, harder pads.