Heya everyone
sorry I havn't responded to your questions in so long, life has been rather crazy for too long now.
Do I notice any kind of airflow restriction? None at all, in fact, with the 3M Red I used I have quite a bit better airflow for my AC system and it smells SOOOOO nice and clean

About the only other way to get a better smell is to be out driving after the rain has been pouring down for more than half an hour

or otherwise just after a rainfall

I love that smell.
If you think about it, there is so much surface area to the OEM filter it's amazing that air gets through it at all!
The airflow is far superior to anything else I've encountered. The next filter I'm going to try is going to be a rather custom job. I'm going to get the very best 3M filter & get some thin 1/8"-ish wood or maybe thing Balsa wood and create an exact replica of the external dimentions of the OEM filter. I'm going to cut out the proper section of the filter needed, glue it in nice and tight on the inside so no air gets by the filter then reinforce it with thin strips of wood to brace it and keep it from getting deformed in any way. Then I'll glue a thin thin thin layer of foam to the outside of the housing so it makes a super tight seal all around the filter & no air can get by it
Anyhow, that's going to have to wait until my legs heal up so I can do this easier.
Anyhow, Best of luck everyone on this

I dont have pictures for it but there should be some on my hard drive & I'll try to find em for ya and post it, email me if you want them & if they for some reason dont show up.
~Duane
d2reid@attbi.com