Fitted my flo rites this week, instructions were all good and they are in looking nice and flush.

word of advice, the instructions ask for a 2" 3/8 hole which in real money is 60mm, they also say listen for a nice click to confirm vents in place.

I found that after purchasing my 60mm holesaw to do a proper job and drilling the holes, i was the required to file for 30 mins to get enough room to install vents as they were tighter then tight.

so my tip would be if ur lazy like me, use a 61 or even 62mm hole saw to get them to snap in first time!

must admit they do look good, have that OE look about them