Had my newage STI replica spoiler fitted for a while now, and I'm notcing a whistling/howling sound above 40mph. Very quiet at that speed, slowly increasing in pitch and volume up to 80ish.

Its not objectionable, but does anyone else notice this on their high level spoiler?

 

My Rover barks at me in the morning !!

Ok ill get my coat

 

i used to notice a hum from the sti 5 spoiler as I increased speed but this was usually faster than 100 (km ).