Where do I find a 6637 intake filter and install instructions(pics)? I want to do some simple mods for MPG and wanna start with the air system, than exhaust, and soon a DP tuner.

I thought AFE were the way to go but after reading here I see some diff. and as far as exhaust goes and suggestions? I like a throaty sound but not ridiculously loud.

 

filter:

https://www.ford-trucks.com/forums/5...s-h-u-g-e.html

here is a good collection of links, and not a bad place to be a member of:

Powerstroke Mods and Maintenance

 

For the exhaust, I got the MKO 4" exhaust on ebay for $300 to my door. Cheapest price you can find and it went on great.

 

You can buy the 6637 (and your oil filters too) from this site. The 6637 is about 2/3 of the way down the page Click Fllet Filter here

 

This is the exhaust I have, comes with muffler and tip. I installed the muffler and it sounds good to me. It's the SS 409. clicky here

You can get the 6637 at NAPA. Cheaper online if you want to wait.

Here is my filter with Pete's filter cover.

<CENTER></CENTER>

 

Here is another pic.