Outer Limits 4x4 Board

hey guys today my car got defected for several reason but one i am unsure of is extractors on my 1989 hilux, ive seen these on heaps of luxs and was wondering if they came stock?

cheers

You can't be defected for having aftermarket extractors fitted.

only reason i can think of is something to do with no egr valve or some other emission related thing