Just found this site last week and was wondering if there was an update to the air filter test. Great site, good to see that some people have the same concerns as me. I love my D/A. Former 7.3 owner but deep down I'm a Chevy man. Never had confidence in the older diesels that Chevrolet used. But man was it worth the wait!! As far as I'm concerned the trans is as impressive as the motor....just my 2 cents.....thankshttp://www.dieselplace.com/forum/smileys/Hug.gif

The test is being performed by a professional testing company. We just lucked out.