Are you serious?
Being boosted is one of the reasons an aftermarket even exists for them…they’re not super advanced in any way. Modern yes, but not to the extent of their higher performance turbocharged counterparts. For example, they have a distributor and an emergency only knock sensor. Not to forget the half counterweight designed crankshaft. Only if QR25’s were put into 240’s, that would make a great torquey 4 banger setup.
If the tuning is done so that dangerous conditions are avoided, KA’s can be great platforms. You can also go standalone and have more sensors for active feedback to keep everything in check, but most people don’t get that far.