It's the Saints Row equivalent of Los Santos Customs...
oh...
It's 90% addons
Actually I only used the add ons vertical print pack, horizontal poles, and pole adapters.
Poles can easily be removed and add the default round bricks.
Vertical print pack, well with default bricks it would look weird imo.
EDIT: I forget about the white vehicle, also can be removed for Jeep
And the lights, can be removed and add the players light