Problem with my mesh

Hello everyone, I am just starting out with ue4 and exported a blender file into the engine but i cant see the outside of the model, from the right i see the left from inside and from the left i see the right from the inside. How do I fix this?
here are 2 images to show you what im trying to say:

thank you very much, have a nice day

Your normals are inverted. Lookup how to fix Normals in Blender and reimport it again. Oh and if someone tells you to simply enable double sided Material ignore him (it works but costs more to render)

Worked, thanks alot

Please mark the question as correct to close it.