These are custom made to order. Some parts may require extra care if you intend to use it for more that a display piece. I typically keep one unit made and ready to go but if one has sold recently then it may take some time to make yours. If you need it in a hurry, please reach out before purchase. If you have any other questions please ask. I try to keep the colors as consistent as possible but there may be some variance in the colors that you recieve due to the amount of filament that this set takes. This set does not come with the flexible muffler pieces since these are not printable. You could add it with some foam pipe if you'd like.