Israel heavily modifies all of their jets I think. Supposedly stuff like allowing the engines to run at a dangerous thrust level because of situations like “Get there now or you won’t have a home to land in”.
Really? A country that engages with neighbours that are barely able to send primitive missiles, while its last generation (US) jets drop bombs straight on their capital cities any time they want, with total impunity? And you still repeat this "poor existentially threatened country" propaganda?
As a side note, terrorists successfully attack highly developed economies all the time. Having good jets doesn’t magically negate that possibility.
Israel has only recently become as strong as it is. Until very recently it could very well lose, and has lost, wars with its neighbors.