i have a gsr with type r pistons and 270cc injectors

i ordered a non-aftercooled gsr supercharger from vortech.

would i encounter detonation issues without an aftercooler? if it does detonate, what would should i do? change it back to gsr pistons? add aftercooler? get a thicker headgasket?

the kit comes with new fuel pump, fmu and 310 injectors