Better and Souped up

Better adjective - (comparative of `good') superior to another (of the same class or set or kind) in excellence or quality or desirability or suitability; more highly skilled than another.

Souped up and better are semantically related in excelling topic. In some cases you can use "Souped up" instead an adjective "Better".

Better and souped up are semantically related in improve topic. Sometimes you can use "Better" instead the word "Souped up" as a verb or an adjective.