Pete,
No disrespect, but I'm going to have to dissagree w/ you. Diesel might be throttled w/ fuel and not air, but all turbo charged diesel's I have delt w/ respond well to opening up the intake and letting it breath a little. If diesels in general didn't respond well to more air then why is there a market for turbo's for diesel engines? If my understanding of a turbo is corect, it works by increasing air flow both going in and out.

P.E.,
No disrespect to you either, but that's not a very scientific method of testing. And I would never expect instant results. I'm not suprized to hear that you didn't find any differance in running new, old, and no filter. What I would expect to see is that over about 1000 miles, you had differant EGT's, varieing MPG consumtion, and a turbo that spools differantly due to the differant filters (or lack of).

I am not wanting to start a war and so far none of the replies are what I'm looking for. I'm not here asking if I should do this or not. I AM here asking what are the best methods TO do this. Refer to my original post if you have forgotten the intention of this thread. We seam to have wandered a little.

I know I want to do this modification. Case in point... I have a 95 Ford Powerstroke. I have a Baldwin filter (refered to above) on it that replaces the entire factory air box. This particular air box is similar in design to an MB air box. When I replaced my filter I experianced a 2-3 MPG jump on my first fill-up. It also cooled the EGT's by about 100 degrees and I added 2-4 Lbs more boost from the turbo. I did this almost 2 years ago and I'm still enjoying everything. It has been consistantly getting 22 MPG, sometimes 23 MPG. Before my new filter it was getting roughly 17-19 MPG and NEVER above 19.5. I find it really hard to believe that this has nothing to do w/ a better flowing filter that ='s more air into the engine.

So please, no more posting telling me I'm wasting my time. I only want posts from drivers that have installed and are still running an open air filter system. If you like it, don't like it or what ever. I think most of us are so stuck w/ the thought that MB designers are Gods and that their car is perfect that we're missing the big picture. We can make improvement on a good design.

Flame suit on.

C