Almost all new Scania trucks nowdays have the spoiler extention kit installed.
This is an hard rubber / plastic strip at the ond of the original spoilers extending the spoilers.
The specialists at WIMA made this items for your scale truck as well.
*Don't forget to order paint (semi gloss or matt black) to paint the strips before mounting.
Mounting can be done with glue.
Note: This product is 3D printed using professional equipment. Which give very high details and accurate products.
Due to the materials used for printing this item it's necessary to use an filling primer for the first layer and sand the product between every spray coat.
The first paint layers will be absorbed by the material which makes the paint attached to the product.