It is, but they will probably still try and pull Skylines over whenever they can... Since they reckon Skylines are the loudest car out there...
I guess it doesn't really matter whether the operation was on or not, TMU will always be doing their job, but it's just a matter of the number of cops on the roads.
Well... I think you are wrong, because throughout the operation, I've seen MANY cop cars pulling people over and honestly, 90% of them were shitboxes that are definitely over the noise limit
So they aren't JUST picking on Skylines/imports, as they did pull over other loud cars on the road as well.
But then again, I'm sure if they had 2 loud cars in sight and one is a Skyline and one is a shitbox, they'd pull over the Skyline lol