Contrary to the other truggies on the market, the Thunder Tiger ST-1 comes with no rear wing. However, Thunder Tiger offers an Extended rear wing mount (part number PD2320). Installing a rear wing is really easy and cheap and it takes only few minutes.

Remove the two small rear body posts and replace them with the extensions included in the kit. Use the same 3 screws and washers to install the extension. As you can see, the new extension includes the rear body posts.
Once you have installed the extension. Screw the former body post into the two included aluminum wing posts using screws and washers, also included in the kit.  You can adjust the wing's angle by changing the front mounting hole position. This will add or remove downforce.
After you have completed those two first steps on both side of the extension, the rear wing's extension should look like this.
Remove the stock lexan spoiler and cut the rear part of the body to clear the extension. Install your favorite wing, apply decals and you are now ready to race !