Just ordered one of these.. Hoping it gets here before Friday.. I also have a 6637 filter on the way.

http://performancetruckproducts.com/...roke-f250-f350
Now for some new batteries and I'm done for the day.
I do plan on getting the TS Performance thingy later this week. I have to check some financial stuff first. I figured it is an easy install that I can do the day or so before I leave if need be. I would actually like to get a few miles on it before setting off for the wild west cruise.

 

Just a suggestion don't use the clamps the come in the kit to clamp the joints especially on the down pipe you will never get it back a part if you have to work on the turbo. Use stainless band clamps you can get them at Napa. I just did my truck with the 5" S.S. diamond eye exhaust a couple month ago and I love it.

 

I realized tonight at work I forgot to get band clamps from the exhaust people. Don't see them on Advanced Auto's site. There is a NAPA store not too far from here I think. If not maybe KOI will have them in stock. Time to order them and have them for this weekend is gone unless some pop up on Amazon this morning.
Heading there now to order my new battery cables.

Can you post me a pic of your 6637 mounted in your truck. The only pics I have seen are of later models.