These scoops are made from PLA, I can do TPU if you plan to race on rough surface, shown are both the tall and the short, tall are for smooth surfaces and short are for rough surfaces as the talls will rub the surface and the shorts SHOULD NOT. Granted this depends on what you do with your car. The shorts are 5mm shorter which gives 5mm more clearance between them and the surface at static stock sitting ride height. They do pull the car down, for speed runs choose the shorts, for small tight oval use the talls. If you really plan to be abusive get the TPU. Glue these into place with the glue of your choice.
