MODS FOR CHALLENGER R/T 450-500hp+?

Planning on trading in my sxt for a r/t soon possibly around December and I just so excited to start my first ever build on a car. Would be very helpful to see what’s the best modifications I can do to it I’ve heard it’s a very good engine to modify. Also would be nice to link any informative vids aswell I’m want to make a list to see everything I would need even the smallest mods like intake what brand would be nice love this community