Does a port grille affect performance?

[Surtsey]

The inside end my port has a grille not dissimilar to this Tuff Cab 75mm Bass Reflex Tuning Port Tube with grille from Tuff Cab PS0.35 IN STOCK (12 Apr 2020)


Does it affect performance?

 

[weltersys]

The grill may possibly buzz, but that amount of crosshatching would have virtually no effect on output or Fb.

 

[Mark Tillotson]

Looks to lack any streamlining on the grid, its going to make noise before a smooth port would.