Again, if you are having trackdays or doing Rally with the stock engine, stock tune or good aftermarket tune, it will be an issue. It won't take more than 8 to 15 trackdays to fail (imagine this is less than 2kmiles on track, so it doesn't last long). A soft and good tune won't sort out the problem at all. I've not seen any 2.5L scooby that last more than that on track.
If you're using your car for daily driving only, even driven hard for a few miles on some occasion, then it won't be an issue until at least 50kmiles (some have more than 100kmiles without any pb) even with a good stage 2 tune.
So basically it is a question of what you're using your car for
At the opposite, the stock 2L STi engine is rock solid up to 380whp