Thanks for doing the write-up. Probably something one of us should have done some time ago.
The stock MAFS housings only allow you to install the MAFS in the correct orientation, too, but it never hurts to look at the arrow and verify this.
I never noticed the holes that you plugged up, so of course I didn't plug up mine. The engine runs fine, so my suggestion is that to avoid the risk of any contamination, people just leave the holes alone.
My car showed some but not a huge noticeable improvement, and I didn't run the fuel flow test first, but at 60k miles I figured it was time so I changed mine anyway. I kept the old ones. I may clean and reuse them some day.
I didn't want to abuse the torx screws so I did get a set of the security bits. I figured they could come in handy some day for something else anyway, and they're not expensive, just hard to find.
The stock MAFS housings only allow you to install the MAFS in the correct orientation, too, but it never hurts to look at the arrow and verify this.
I never noticed the holes that you plugged up, so of course I didn't plug up mine. The engine runs fine, so my suggestion is that to avoid the risk of any contamination, people just leave the holes alone.
My car showed some but not a huge noticeable improvement, and I didn't run the fuel flow test first, but at 60k miles I figured it was time so I changed mine anyway. I kept the old ones. I may clean and reuse them some day.
I didn't want to abuse the torx screws so I did get a set of the security bits. I figured they could come in handy some day for something else anyway, and they're not expensive, just hard to find.
