The best thing these days is the new ecu,s have all the safety features in so you can set things like afr ignition timing boost etc so if it peaks to the setting you’ve put in it won’t let the engine go past it,and also with boost per gear at least you can set a rwd up so it’s not blowing the tyres off in the first 3 gears,but that also has a lot to do with how hard you bring the boost in aswell
wish these features were available years ago