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DB, Thanks for the info dude. You know I would have thought it would have done better on the fuel with the 4. 10's but you seem to get about the same mileage as I do. I am starting to think with the new emission stuff on these, fuel mileage will be mandated from that stuff, or I guess I...

I sure wish I had the 4. 10 with my 6. 7 and the 68 rfe transmission... I haul all the time though and that might be the only reason too. I just see so much area for the 4. 10's to do a better job while towing and in sixth gear LOL... Not that it doesn't do just fine in fifth though, as the 6. 7 is a...

CD, Funny you should ask dude... Since the AU flash I did see a little more fuel burned on the route and that was even after a little more tuning of the riflings. Didn't get all into this so much so as I was asked to put the truck back to stock for the time being to see how it performs like...

Guys, I have changed the fuel filter a multiple of times and I have changed it from the bottom of the truck as well as from the top of the truck also. Its tight, but it will go and if you move the filter easy enough, you want get dirt off the other parts of the truck into the filter as...

CD, You did some digging to have found this older thread dude :) Sad thing is I have yet to finish these either. I have them on the truck and have been using them, I just have yet to put the check plate on them and have them sprayed with the bedliner stuff... I have kept thinking I would...

Ok, More info now on the exhaust system and rifling veins after the new AU flash... I went ahead and pulled all the veins out and ran the truck for a 40 mile round trip for a good enough run to get an idea of what is going on with the setup with just the OEM Down-pipe and the rest being...

JR, Its not loud at all, but it does have some what a throaty sound right now. I have since added a 5" tail pipe from the axle back and that seems to have a really good sound affect to all this as well. I do think the loud part would be getting the last of the filter out of the system which...

No new news to anything here yet, this week has ended to be one of the craziest on the route I run. So I just had no time to pull one of the rifling veins out of the exhaust system to see if what I think is going on to be true. I will be changing the engine oil this week-end and I will yank...

CD, The intake tube you see here is nothing more than a transfer tube. Its the tube between the airbox, where the filter is and the turbo. There is really no big trick here dude with just the tube as its shown. Its advantage over the OEM tube is that its all smooth on the inside and has...

CDog, Dude I know what your wanting to do and I have done this with cats before and its not much to it really. Its all about gutting what the filters have inside and then run new straight pipe right straight through it and weld that all in place and have your flanges on the ends as is...

Blacksheep, Yes all it was basically is a restriction as you mentioned, but by doing so with the rifling vein will help with keeping the soot and smoke plume all stirred and from settling quite so bad and go ahead and carry on out the tail pipe. At least its been working quite well...

Guys, The new AU flash was suppose to deal with the cooler by-pass valve standing open or at least the ECU thinks so. Mine and one other in the area here that this dealer works on. Only two this dealer has from what the tech told me. There was suppose to be a few other small things...

Mr. Wolfy I would have addressed this the same if you was a moderator here or not really. It always best if we all can work together and through things like this. So after the fact, it was the least I could do by just removing all the stuff so offensive... Guys I will make a few posts...

To get back to the main question here and what I have done to my exhaust, do I dare post PIC's of what I did and text of how it works??? If its going to start a problem for a few to understand what I did and how it affects things, I will drop it all together... I got to go an edit my first...

Ouch Mr. Wolfy, Sorry dude for affending you and leading you to think I was a master of anything. Never once wanted to start a problem with anyone here dude, and yet I guess I did. I will go and edit my past post here so as not to affend you and others I am sure now I may have... Was...

Guys, I tried to share what I did to remove all the exhaust on my 6. 7 and just how well its been doing on the DTR forum and had it all deleted and was told that I was not to do that on their forum. I didn't see any problem since all the guys was talking about straight exhaust and stuff, so...

Dude, you might want to see if the tail pipe behind the rear axle is hitting the leaf spring by it. Mine was and did the same sort of sound. It gets real close to the spring. You can loosen the last section clamp and twist the tail pipe downward just a little and mine moved away from the...

DR, I bet your having the same problem as many of us here and its with thye EGR... I have mine scheduled to have the new EGR and crossover pipe and everything on mine Monday week after this one coming. Mine has been a problem since was new as yours and I now have over 32K. I would sure...

JSmole, You put the three guages on the pillar mount I noticed from the reference of your vehicle at the bottom of your post. You do this without losing the handle???

One of my dealers has already done a straight exhaust on the 6. 4 Ford and I was told so far they have seen 4-5 MPG better fuel consumption. The dealer also told me that the exhaust for the 6. 7 was expected sometime this fall if not sooner. Magnaflow is whom I was told is doing these and...